SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of...

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DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of teaching is 1. To admit students to school 2. To develop reasoning and problem solving 3. To give information 4. Assess students improvement

Transcript of SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of...

Page 1: SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of teaching is 1. To admit students to school 2. To develop reasoning and problem solving

DEECET – 2018

(MATHEMATICS)

Teaching Aptitude – SET - 1

1. The main aim of teaching is

1. To admit students to school

2. To develop reasoning and problem solving

3. To give information

4. Assess students improvement

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2. What is the result of interaction between the teacher and students

1. Facilitates effective learning

2. Useful for teacher to write teaching notes

3. Indiscipline in the class rooms

4. Can not complete syllabus in time

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3. An effective teaching aid is

1. Colourful and attractive

2. Improves learning experiences

3. High expensive

4. Used to decorate in class room

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4. In your class some of the students are not attending regularly. What

will you do as a teacher of that class

1. Put absent marks in attendance register

2. Corporal punishment may be given

3. Inform to Headmaster

4. Know the reasons for their absence from students and their

parents and try to address them.

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�w������ �y����

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5. Students can learn more

1. When the whole class is kept silent while teacher transmitting

lesson

2. Students are allowed to note down points in their note books

3. Participate in learning activities such as discussions,

experimenting and sharing views within groups and whole

class

4. Conduct exams regularly for achieving quantitative scores.

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G. K. – SET - 1

6. The city named as “Pink city”

1. Delhi

2. Bangalore

3. Jaipur

4. Mahabalipuram

��� �� ����� .�,®�� �̄�� �� °� �� ��± �� �²�³ �� ��²�´�

7. Adams bridge (Rama sethu) is located in

1. Indian Ocean

2. Bay of Bengal

3. Arebian sea

4. Meditaranion sea

�µ . X¶���� ·�̧ �¹< º X=� ��»������¼ �� ½�¾ �� �¿�À �� ?Á�¾ �� ����;Â

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8. India stood in the place of getting medals in 2018 Common Wealth

games

1. 3rd

place

2. 11th

place

3. 8th

place

4. 20th

place

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�� �Ô �� ��Õ�Ö �� ��×[� �� ��Ø

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9. Government of Andhra Pradesh distributed under the scheme

‘badikosta’ is

1. Scholarships

2. Teaching material

3. Bicycles

4. Mid Day Meal

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�� � ]Äâã� �� �ä���� �� å> �� � ��æ���ç��

10. The person praised as ‘Harikatha pitamahudu’

1. Dwaram Ramaswami Naidu

2. Tarigonda Vengamamba

3. Adibhatla Narayanadasu

4. Gadiyaram Venkata Sesha Sastri

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English – SET - 1

11. Read the following passage to answer the questions (11-12).

I am afraid to go out and to be uncovered my head in the sun now, because of the holes in the ozone. I am afraid to breathe the air, because I don’t know what chemicals are in it. I used to go fishing in my home town, with my Dad, until just a few years ago we found the fish full of cancers. And now we hear about animals and plants going extinct every day.

In this passage, the speaker described:

1. the ways of fishing 2. the problem of global warming 3. the problem of killing animals for meat 4. the problems of living in a city

12. Choose the correct synonym and the antonym of the word, ‘uncovered’ respectively

1. unveiled (synonym); concealed (antonym)

2. revealed (synonym); cleared (antonym)

3. unmasked (synonym); disclosed (antonym)

4. showed (synonym); opened (antonym)

13. Choose the sentence with a defining relative clause.

1. Who takes another man’s freedom?

2. The people followed the principles that Mandela advocated.

3. Which book do you like?

4. I know who you are.

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14. In an informal letter, the expression, ‘Yours lovingly’ is used in :

1. the heading

2. the opening

3. the body

4. the closing

15. Sir, can I leave this place?

The purpose of this sentence is:

1. giving an order

2. making a request

3. taking a permission

4. making a suggestion

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Telugu – SET - 1

16. ªªdüTuÛ≤wæ‘· s¡‘êïe[µµ X¯‘·ø±ìï s¡∫+∫q~

1. ã<Ó›q

2. @qT>∑T \ø£åàDø£$

3. ‹ø£ÿq

4. y˚eTq

17. d”‘· $˙\‘√bÕ≥T ã&çøÏ yÓ[fl+~. (á yêø£´+˝À wüw” ̃$uÛÑøÏÔ Á|ü‘·´j·÷ìï >∑T]Ô+#·+&ç)

1. ‘√

2. bÕ≥T

3. ‘·

4. øÏ

18. ªªeq» #·Ts¡T¬ø’q~, n+<äyÓTÆq~µµ. á yêø£´+

1. dü+j·TTø£Ôyêø£´+

2. ìùw<Ûës¡úø£yêø£´+

3. kÕe÷q´yêø£´+

4. dü+<˚Vü‰s¡úø£yêø£´+

19. Äø±X¯+˝À |üøÏå m>∑Ts¡T‘√+~. ªª|üøÏåµµ |ü<ëìøÏ $ø£è‹ >∑T]Ô+#·+&ç.

1. |üø£åeTT

2. Á|üø£ÿ

3. |üøÏÿ

4. ~X¯

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20. ªªñqï<ä+‘ê }&ÉTÃ≈£îb˛e&É+µµ ` á C≤rj·÷ìøÏ ns¡ú+ >∑T]Ô+#·+&ç.

1. @] ≈£î|üŒ>± b˛j·T&É+

2. @MT $T>∑\≈£î+&Ü b˛e&É+

3. nqT≈£îqï<ëì ø£Hêï m≈£îÿe |ü+&É≥+

4. sêX¯ó\T>± b˛j·T&É+

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1st Language Urdu – SET - 1

��� l�ú��û�%��� ,�ü����� ]ô����< �ý

�� þ �� � �� ;� �� ��

��� l������ � ����5����:�d��[�

�� � �� �� �� � �� +���

��� ����� �0��M���������(�

�� ��Á �� �C �� �� ]ô �� �

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��� �� �k�0�������� ����� �� �� ���� ���������i[���� ��l�A�:

�� vÜ �� �� �� �� !"

��� l�ú�� ���#�$�� 8/�%�&

�� ' �� ( �� �) �� *

��� l�A�v+ �:�û

�� �� �����L����r,� �� � ������-���r,� �� � ������� .��:�v����r,� �� � �����./ ���r,�

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��� �� �k�����0���1 �2�� êë���3���2 ����4 ��

�� �µÆ8 5 ]6 �� ��7� �� �µÆ8 5 ]6� �� ��2

��� ���� �����²���vÛ8,�9

�� �� ���������9 �� � �����: �x�; �� : �d� X .<�� � ���� �� � �����: ����;

��� kl�Ð��= ���d���>� �?�Á��� êë)

�� ;�@� �� ;�A �� �B� �� ;��8�

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��� ��Á� ]ô�&��� ��{J� ./����C �:�����D�}E���)���vÁ� ]ô

�� F �G �F �� 8HI��d� �� � ������J �� �K��LM

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Mathematics – SET - 1

31. The value of 20182017 )1()1( −+− is

20182017 )1()1( −+−�h�� 1. 1

2. 0

3. −1

4. 4015

32. The sum of two rational numbers is 8 and one of the numbers is 8

5−

then other number is

�NO�����©��P � �����8 ��©� XY��à��k��8

5−w0��©��;�����0

1. 8

59

2. 8

69

3. 5−

4. 5

64−

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33. The standard form of 123456789 is

123456789 Q �v�R ��� 1. 81023456789.1 ×

2. 81023456789.1 −×

3. 91023456789.1 ×

4. 91023456789.1 −×

34. The diagnol of the cuboid with dimensions 9cm × 12cm × 20cm is

in cm

9cm × 12cm × 20cm�������� ./��:�S �T�U����� 8V���� º XW�X 1. 21

2. 25

3. 32

4. 41

35. The Polynomial having 3, −2 as Zeroes is

�Y �:�Z �[��\3 �� � −2 l 1. 2x3x2

++

2. 6x3x2−+

3. 6xx2++

4. 6xx2−−

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36. If A and B are two sets the AB,BA −− and BA ∩ are always

1. null sets

2. equal sets

3. equivalent sets

4. Disjoint sets

A �� �B � 8 .Ù�kl�]��� AB,BA −− �� � BA ∩ �kl��0�̂ �� ]�%� �� ]�v�_ �� ]�`� �� ]�a

37. If the measures of two complementary angles are 0)3x5( − and 0)15x8( + then the supplementary angle of “x” is

�gb ����c��d�í�����à� 0)3x5( −�� �0)15x8( + � 8 .Ù�0 “x” w0�4��d�d �� 1. 084

2. 0174

3. 0264

4. 0354

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38. If the principle becomes three times in 15 years then the rate of

simple interest per annum is

����y0�Q��>�e �fg����h ����0�� �i ����d�1�����>

1. %2

112

2. %3

112

3. %3

113

4. 15%

39. The Arthemetic mean of first “n” natural numbers is

�j “n” ��k���\l �����©��m

1. 12

n+

2. 2

1n −

3. 2

n

4. 2

1n +

Page 20: SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of teaching is 1. To admit students to school 2. To develop reasoning and problem solving

40. If a number is selected from numbers 1 to 20 cards then the

probability that it is a prime number is

��� � .������h ���n������ 8 .Ù�¤�Ö�Q�?o����n��� XY��5����n���U���p����©��:� .Y�q ��� 0��©

1. 5

2

2. 2

1

3. 5

3

4. 4

3

Page 21: SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of teaching is 1. To admit students to school 2. To develop reasoning and problem solving

General Science – SET – 1

(Biology)

41. Fibres that connect two bones in a human body are called

1. Ligaments

2. Tendons

3. Joints

4. Ribs

�r �¤l��!��5�vs�v;����vs� XY����t��\u��;��l �� v�8�� �� � ./� �� !� �� �w

42. Example for carnivorous plants

1. Drosera

2. Mushrooms

3. Algae

4. Fungi

�x������²��y � . ]Äð �� �z��n �� ��{ �� |� �� } 8~ �Ë�

Page 22: SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of teaching is 1. To admit students to school 2. To develop reasoning and problem solving

43. Bacteria which can be seen with unaided eye

1. Lactobacillus

2. Steptobacillus

3. Blue – Green bacteria

4. Thiomargarita Namibiensis

��P,����5��[��;�>��Z �� X�� �;� �� �ÌX ��#�� �� �ÌX ��#�µÆº ��öº��� �� ���� �X�� �� �� � � ����à�)� ���ö X�8� ���

44. Sieve cells are found in

1. Parenchyma

2. Fibre

3. Xylem

4. Phloem

l��,���������� X �������� �� � �8��} 8ËÇ� �� t� �� �8 � ]� �� �� t����

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45. Nephridia are the excretory organs in

1. Annelida

2. Nematoda

3. Mollusca

4. Reptiles

a�à ����������l���� �������� ����:��c� ��� �� �< º�X �ÌX ���� �� �n�� �� ������ �� ��0

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General Science SET-1

Physical Science

46. Which of the following is used to measure the volume of an irregular

solid

1. Graph paper

2. Meter Scale

3. Measuring Tape

4. Measuring Cylinder

��:�  ��×�¡�o���� .�,�Q��e�������f�:�gb �� �� ¢��£ � ./ �� v¤ ���� º XW �� ¥�¦b �� ��§��¦b

47. The acid present in vinegar is

1. Tartaric acid

2. Malic acid

3. Citric acid

4. Acetic acid

� �̈ ./�&��� ,��X�������©; �� Tartaric��̈ ./ �� Malic��̈ ./ �� Citric��̈ ./ �� Acetic��̈ ./

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48. A body is moving on a rough horizontal surface towards South.

Then the direction of frictional force is towards

1. North

2. South

3. West

4. East

�ª�« ���?¬�  �$�à����­ �® ��� �̄ ���� º°��%��� ���������� 8 .Ù�¤��±��« ���(²��

�� �³ �� ?¬ �� ?´ �� �{

49. Which of the following is a diatomic molecule

1. Nitrogen

2. Argon

3. Ozone

4. Phosphorus

��µ>�v� êë�������ö �x�� �� ·�¸ � �� �� �w�[� �� � � � �� ��¹º

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50. Which of the following pair of phenomena take place at the same

temperature

1. Freezing and Condensation

2. Boiling and Evaporation

3. Melting and Freezing

4. Boiling and Melting

kl��0�»�����(���»���±� XY��¼ ����½���ö �x�� �� ¾8 ~�¿�À�������� �� Á��������Â� �� ���¾8 ~�¿������à �� Ã��������Â�

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DEECET – 2018

(SOCIAL STUDIES SET - 1)

51. Find out the true statement regarding “average”

A) It is useful for comparison

B) It does not show the disparities among the people

1. A only

2. B only

3. Both A and B

4. Neither A nor B

��k�� ��Ä � . �ÅÆ���Ç �È �É�5

��� ��Ê �f�:� 8̧ Ë �4 ��� �� .���R�� êëÌ ��(��_ ��©��Í���:���Î �4

�� ���Ï��È �� ���Ï��È �� � ���� �� F��È ��

�� � ���� �� ��F��

Page 28: SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of teaching is 1. To admit students to school 2. To develop reasoning and problem solving

52. Which among the following is not considered a information

according to R.T.I Act?

1. Material in form of press release

2. Material in form of e-mails

3. Material in form of logbooks

4. Oral instruction of a Headmaster to a teacher

� ()*� Ñ � �Fª������� � ()*� ö � x��� ÒÓ � :��}~� ����� ��!������ .�,�Q�R��Ô

�� ����������Q ����Õ� �� ����������Q ���k�Ökv� �� � ·8Y�×&�"�# ����������������Q �� �� (�X��Ø�{�8�d�U��� ,�Ù�����C�Ú�¶ �:���C���

53. The largest continental shelf is in

1. Pacific Ocean

2. Atlantic Ocean

3. Indian Ocean

4. Arctic Ocean

��Ûn �Ü�� 8/�v�º 8/�5� 8Ä����������$ %��$ ���»�����Ý�� 8/���

�� Þß�¾ �� �Fq���¾ �� ½�¾ �� à�[��¾

Page 29: SET - 1 - Maths · DEECET – 2018 (MATHEMATICS) Teaching Aptitude – SET - 1 1. The main aim of teaching is 1. To admit students to school 2. To develop reasoning and problem solving

54. ‘Writ’ means

1. An authority to the court to issue directions to the government

regarding constitutional rights

2. An authority given to the government to issue directions to

the court regarding constitutional rights

3. An authority given to the government to issue directions to

the people regarding constitutional rights

4. An authority given to the court to issue directions to the

people regarding constitutional rights

����� ���� �5

�� ������ ��v�,�(�X��Ø�� .ÝÞ�á�©�É �5��â�v�§� �� ���ã�©�¤� .ÝÞ�É �5��â�v�§������� ��v�,�(�X��Ø �� ������ ��v�,�(�X��Ø����Î � .ÝÞ�É �5��â�v�§� �� ������ ��v�,�(�X��Ø����Î �á�©�É �5��â�v�§�

55. Most of the forests in Andhra Pradesh fall under the category of

1. Ever green forests

2. Deciduous forests

3. Thorny forests

4. Littoral forests

l�:�ä ����(å �p��:�Ú����ÛÜ[�

�� (å ��1��æ �� (å �:�ç� . �Ù �� (å ������ �� (å �%��������è �!>

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56. Find out the list movements that are arranged in correct

chronological order.

1. Non – cooperation movement, Civil Disobedience

Movement, Quit India Movement

2. Civil Disobedience Movement, Non – cooperative

Movement, Quit India Movement

3. Civil Disobedience Movement, Quit India Movement, Non –

cooperative Movement

4. Non – cooperative Movement, Quit India Movement, Civil

Disobedience Movement

é��ê� ./�5����:�ë����U��� 0�S���:����� .ÄÅ����ìí �ö �x��

�� XYí ���!î��Ó�½�¤ XYí�{)� ��� ����ï ����¤ XYí���ð ��© �� Ó�½�¤ XYí ���ð ��©�¤� XYí �{)� ��� ����ï XYí���!î�� �� XYí���ð ��©�¤ XYí���!î��Ó�½�¤ XYí �{)� ��� ����ï �� XYí �{)� ��� ����ï �¤ XYí���!î��Ó�½�¤ XYí���ð ��©

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57. The line that passes through Africa is

1. Tropic of cancer

2. Tropic of Capricorn

3. Equator

4. All the above

ñ�%��� �ò �5�ó � ��[�

�� �ô; �ñ �� v< 8ý�ñ �� �§��ñ �� ���&�8��»�õ

58. According to chola inscriptions, ‘Shalab hoga’ is

1. The land for maintenance of a school

2. The land gifted to Brahmins

3. The land gifted to temples

4. The land gifted to jaina institutions

�ÒÓ �:�(ö�:��s&÷���wø �Z� ]ô����� �5

�� ùd�%��� 0��e��f�:��ú��:���� �� ùd�û �v�����ü ���ý � 8/ �� ùd�û ���þ�f�:����õ �� ùd�û ���þ���������:� .Ý��

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59. The state that doesn’t share its boundary with Andhra Pradesh is

1. Odisha

2. Tamilnadu

3. Maharastra

4. Karnataka

.Ä�X���%���� �8�����; �5�Ú����ÛÜ[�

�� �n� �� �n � ����� º� �� ����� �� ºY� ���

60. The oldest municipality in Andhra Pradesh is

1. Rajahmundry

2. Tenali

3. Srikakulam

4. Bhimili

�4���� ./��h���Ú����ÛÜ[��&'�(��$� �k�

�� v��� �� % �� ��; �� } ¾XË�8 ¿

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DEECET – 2018

Mathematics – SET – 1

61. If BA:f → is a function defined as f(x) = x+1 and A = {1,2,3} then

f(A) is

��� �à� BA:f → ��� ���Zf(x) = x+1 ����¤��û ���5 A = {1,2,3} �� 8 .Ùf(A) �h��

1. {2,3,5}

2. {2,3,4}

3. {3,4,5}

4. {2,5,4}

62. The domain of the real valued function 2x16)x(f −= is

��� �v�h�� 2x16)x(f −= ���M 1. [−4, 4]

2. (−4, 4)

3. [−4, 4)

4. (−4, 4]

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63. The trace of the matrix

102

512

531

is.

��� ./)

102

512

531

��� � ] �­��

1. 2

2. −1

3. 0

4. 1

64. The adjoint of the matrix

64

32 is

64

32

�� XYg����� ./)

1.

−−

64

32

2.

24

36

3.

− 24

36

4.

− 63

42

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65. The unit vector in the direction of vector kj3i2a ++= is

kj3i2a ++= �$��� XY����« ����� 1. )kj3i2(14 ++

2. )kj3i2(14

1++

3. )kj3i2(6 ++

4. )kj3i2(6

1++

66. Let a and b be non – zero, non – collinear vectors. If baba −=+

then the angle between a and b is

�© �� ��) a�� � b �à��k�l����X �.ö¾6�ñ���o�����¤�Y �o baba −=+

� 8 .٠a� � b �4��d�{����

1. 3600

2. 1800

3. 900

4. 00

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67. If 5

4sin =θ and θ is not in the first quadrant then the value of θcos is

�à� 5

4sin =θ �� � θ� 8 .Ù�¤�0���»��������j θcos�h��

1. 5

3

2. 5

3−

3. 25

9

4. 25

9−

68. The solution of 3Tan2=θ is

�(��_ 3Tan2=θ!��

1. 3

2. 3

−π

3. 3

±π

4. 6

±π

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69. for all =+∈−− xCotxTan,Rx 11

��� Rx ∈f�: =+−− xCotxTan 11

1. 0

2. 2

π

3. π

4. 2 π

70. If Cos hx = 2

5 then the value of Cos h 2x is

�à�Cos hx = 2

5 � 8 .�0Cos h 2x �h��

1. 2

23

2. 2

25

3. 4

5

4. 5

71. The equation of locus of a point which is equidistant from the co-

ordinate axes is

��»������º�v�_ �5����������(��_ ������:��� XY� 1. x

2 + y

2 = 0

2. x2 + y

2 = 1

3. x2 − y

2 = 0

4. x2 − y

2 = 1

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72. If L1, L2 are two non – vertical straight lines with slopes m1 and m2

If L1 and L2 are perpendicular then the condition is

L1 �� �L2 ��,n �:�·�l�v��\u��o���m1 �� �m2 �klL1 �� �L2 ������vg��� 0

1. m1 = m2

2. m1m2=1

3. m1m2 ≠ 1

4. m1m2= −1

73. The equation of the reflection of the line x = 1 in the y – axis is

y – ���ñ���� x = 1 (��_ ���! �: 1. y = −1

2. x = −1

3. y = 1

4. x = 0

74. The point of intersection of the lines x+ y – 1 = 0 and x – y + 5 = 0 is

�v�x+ y – 1 = 0 �� �x – y + 5 = 0 "Ë ���� 1. (2, 3)

2. (−2, −3)

3. (−2, 3)

4. (2, −3)

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75. The acute angle between the pair of lines represented by the equation

0ycotxy2x 22=−α+ is

�(��_ � %��� �� � êëÌ � �.!��:���ñ0ycotxy2x 22=−α+ ���v� �:

��4��d�;�2�{Í�� 1. π2

2. π

3. 2

π

4. 0

76. The triangle formed by the points (1,2,3), (2,3,1) and ( 3,1,2) is

1. equilateral triangle

2. isosceles triangle

3. right angled triangle

4. right angled isosceles triangle.

�v# (1,2,3), (2,3,1) ��� �( 3,1,2) $�&���% ��5 �� $�}&&��v�_ �� $�'(��v�_ �� $�4��d�)ª �� �v�_ �4��d�)ª$�'(�

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77. If the direction cosines of a line are c1,

c1,

c1 then the value of ‘c’ is

c1,

c1,

c1 ‘c’

1. 3

2. 3

3. 3

4. 3

1

78. The value of 0

1lim1

x

xx

ab

(a>0, b>0, 1b ) is

0

1lim1

x

xx

ab

(a>0, b>0, 1b )

1. balog

2. logb a

3. ablog

4. loga b

79. If 33 aSiny,aCosx then dxdy is

33 aSiny,aCosx dxdy

1. Tan

2. Tan

3. Cot

4. Cot

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80. If the increase in the side of a square is 4% then the approximate

percentage of increase in the area of the square is

���+ �:��� � XY��à� 4% �,-� � � �&��� 0���.��:���� 8 .Ù�¤��,�Q�/0���/0��1

1. 2

2. 4

3. 8

4. 16

81. If Z1 = (6, 3), Z2 = (2, −1) then Z1− Z2 is

�à�Z1 = (6, 3), Z2 = (2, −1) � 8 .Ù�¤�0Z1− Z2 �h�� 1. (4, 4)

2. (−4, 4)

3. (4, −4)

4. (−4, −4)

82. If x = Cosθ + i sin θ then the value of 6

6

x

1x + is

�à�x = Cos θ + i sin θ � 8 .Ù�¤�0 6

6

x

1x + �h��

1. 2 Cos θ

2. 2 Cos6 θ

3. 2i sin θ

4. 2i sin 6 θ

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83. The roots of the equation x2 – 7x + 12 = 0 are

�(��_ �������x2 – 7x + 12 = 0 l�t��:

1. 3, − 4

2. −3, 4

3. −3, −4

4. 3, 4

84. If −1, 2, α are the roots of 2x3 + x

2–7x – 6 =0 then the value of α is

� �à� −1, 2, α �(��_ 2x3 + x

2–7x – 6 =0 � 8 .Ù�¤0�t��: α �h��

1. 2

1

2. 2

3

3. 2

3−

4. 2

1−

85. The number of injections of a set A with 5 elements to a set B with 7

elements is

� º X2A ���Z 5 � º X2 �kl�Ï3B ���Z 7 � XY�� � .�� XY��U���% �kl�Ï3��4���(M�

1. 5

2. 5P7

3. 5C7

4. 5P5

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86. The number of diagonals of a polygon with 12 sides are

�� �����5�[��\� XY���������4������ ./� 1. 54

2. 12

3. 27

4. 48

87. The number of terms in the expansion of 9

2

b

4

a3

+ is

9

2

b

4

a3

+

��������s6 �:��4��

1. 9

2. 5

3. 12

4. 10

88. Variance of 6, 8, 10 is

�(��X �7Ç8 6, 8, 10 ��9��

1. 8

3

2. 3

4

3. 3

8

4. 4

3

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89. Two dice are thrown. The probability of getting the same number on

both the faces is

���:���� 0�12��©�v�_ ����y���F���:����kl�Ï�;�½ ������

1. 36

1

2. 6

1

3. 36

2

4. 6

2

90. The probability distribution of a random variable X is given below

X = xi 1 2 3 4 5

P(X=xi) k 2k 3k 4k 5k

Then the value of ‘k’ is

�<�`= �> � XY����öX �k��û �v��? �%:��� X = xi 1 2 3 4 5

P(X=xi) k 2k 3k 4k 5k

� 8 .Ù ‘k’ �h��

1. 15

1

2. 15

2

3. 15

3

4. 15

4

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91. The length of the tangent from an external point P(x1, y1) to the

circle S = 0 is

�;� @/��S = 0 �5�AB �:P(x1, y1) � XY��������� 8 .�k�P��5S = 0 ��C ���������D

1. S11

2. 11S

3. 2

11S

4. None

92. The centre of the circle x2 + y

2 + 2ax – 2by + b

2 = 0 is

;� @/�� x2 + y

2 + 2ax – 2by + b

2 = 0 �� �E� ��

1. (−a, b)

2. (−a, −b)

3. (a, −b)

4. (a, b)

93. The equation of the radical axis of the circles x2 +y

2 + 2x+4y+ 1 = 0,

x2 + y

2 + 4x + y = 0

x2 +y

2 + 2x + 4y+ 1 = 0, x

2 + y

2 + 4x + y = 0 �:���� @/��� � �v�F����(��_

1. 2x +3y + 1 = 0

2. 2x + 3y – 1 = 0

3. 2x – 3y + 1 = 0

4. 2x – 3y – 1 = 0

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94. The condition for a straight line y = mx + c )0m( ≠ to be a tangent

to the parabola y2 = 4ax (a > 0) is

���ñy = mx + c )0m( ≠ �eG�¤y2 = 4ax (a > 0) ��vg��� 0��D��

1. a

mc =

2. c = am

3. m

ac =

4. c + am = 0

95. The length of the latus rectum of the ellipse 9x2 + 16y

2 = 144 is

�H� �� 9x2 + 16y

2 = 144 ������Iº ËJX Í���º ö X�� �:

1. 3

32

2. 2

9

3. 32

3

4. 9

2

96. The eccentricity of a rectangular hyperbola is

�� . XÙ � �E� �K���L�d�} X�7.öõ8 1. −1

2. 1

3. 2

4. 2

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97. ∫ =dxx

1

1. log x

2. log x + c

3. log |x|

4. log |x| + c

98. ∫ =+

+dx

x2Sin1

SinxCosx

1. x + c

2. x

3. x

1

4. cx

1+

99. ∫

π

2

0

4xSin dx =

1. 16

π

2. 16

3. 16

4. 16

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100. The degree of the differential equation 4edx

dy3

dx

yd x

22

3

3

=−

is

�(��_ �-M 4edx

dy3

dx

yd x

22

3

3

=−

»����

1. 1

2. 2

3. 3

4. 4