Koleksi Soalan Matematik Tambahan Spm 2004-2009-Differentiation
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Transcript of Koleksi Soalan Matematik Tambahan Spm 2004-2009-Differentiation
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PANITIA MATEMATIK TAMBAHAN
TAJUK:DIFFERENTIATION -
OLEH:CG. SHAIFUR AZURA BIN SUHAIMI
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RELATED RATES OF CHANGESBy: CG. Shaifur Azura Suhaimi
SMK Sultan Ibrahim (1), Pasir Mas, Kelantan
dd
THE RATES BOX
columnfor time
column for he ight,radius & x
column for Area,Volume & y
t
h, r, x
h, r, x
A, v, y
Briefing about Rates Box:
symbol X = times
respect to tdivide or by
differentiate
dd
THE RATES BOX
t
h, r, x
h, r, x
A, v, y
d dA
r
r
t
column for Area
column for radius columnfor time
THE RATES BOX
2
Refer to general
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1)
dd
THE RATES BOX
columnfor time
column for radius
column forvolume
t
r
r
v
2)
d d hv
h t
column forvolume
column for he ight columnfor time
THE RATES BOX
3)
d dcolumnfor time
THE RATES BOX
column for he ight
column forvolume
tx
v x
4)
3
Refer to sphere
Refer to cylinder
Refer to cube
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ddh,r,x
h,r,x t
S,A, V, Y
2: Find the value
ddh,r,x
h,r,x t
S,A, V, Y
3: Find the value
Example: SPM 2005, Q20
= h2 + 8
= (2)2 + 8
, when h = 2 = 12
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12
10dd
h
h t
V
3: Find the value
= 0.833cms-1
Example 2: Sasbadi Nexus, pg 152
, spherical balloon
r = 7 cm. Find
Solution:
V sphere =
= = 4π (7)2
= 196π
2196dd
r
r t
V
= 392π
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KOLEKSI SOALAN MATEMATIK TAMBAHAN SPM 2004 – 2009
TAJUK : DIFFERENTIATIONArranged By: Cg. Shaifur Azura Suhaimi
2004: PAPER 1
Q20: Differentiate with respect to x. [3marks]
Q21: Two variables, m and n, are related by the equation . Given that m
increases at a constant rate of 5 units per second, find the rate of change of n when n = 2. [3marks]
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2005: PAPER 1
Q19: Given that , evaluate
[4marks]
Q20: The volume of water, V cm3, in a container is given by , where h cm
is the height of the water in the container. Water is poured into the container at the
rate of 10 cm3s-1. Find the rate of change of the height of water, in cms-1, at the
instant when its height is 2 cm.[3marks]
2006: PAPER 1
Q17: The point P lies on the curve y = (2x – 1)2. It is given that the gradient of normal is
. Find the coordinates of P.
[3marks]
Q18: Given y = , where u = 5x – 2. Find in terms of x.
[3marks]2006: PAPER 1
Q19: Given y = 4x2 + x – 3
a) Find the value of when x = 2
b) Express the approximate change in y, in terms of p, when x changes from 2 to 2 + p, where p is a small value.
[4marks]
2007: PAPER 1
Q19: The curve is such that , where k is a constant. If the
gradient of the curve at x = 3 is 2, find the value of k.[2marks]
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Q20: The curve has a maximum point at x = p, where p is aconstant. Find the value of p.
[3marks]
2008: PAPER 1
Q19: Two variables, x and y, are related by the equation , express, in terms of
h , the approximate change in y when x changes from 5 to 5 + h. [3marks]
Q20: The normal to the curve at point P is parallel to the straight line
. Find the equation of normal to the curve at point P.
[4marks]
2009: PAPER 1
Q19: The gradient function of a curve is , where k is a constant. It is given
that the curve has a turning point at (2, 1). Finda) the value of kb) the equation of the curve
[4marks]
Q20: A block of ice in the form of a cube with sides x cm, melts at rate of 9.72 cm3 per minute. Find the rate of change of x at the instant when x = 12 cm.
[3marks]
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2004: PAPER 2
Q5: The gradient function of a curve which passes through A(1, -12) is . Finda) the equation of the curve, [3marks]b) the coordinates of the turning points of the curve and determine whether
each of the turning points is a maximum or a minimum. [5marks]
2005: PAPER 2
Q2: A curve has a gradient function , where p is a constant. The tangent to a curve at the point (1, 3) is parallel to the straight line y + x – 5 = 0. Finda) the value of p, [3marks]b) the equation of the curve [3marks]
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2007: PAPER 2
Q4: A curve with gradient function has a turning point at (k, 8)
a) Find the value of k, [3marks]b) Determine whether the turning point is a maximum or a minimum point. [2marks]c) Find the equation of the curve. [3marks]
2009: PAPER 2
Q3: The gradient function of a curve is hx2 – kx, where h and k are constants. Thecurve has a turning point at (3, -4). The gradient of tangent to the curve at thepoint x = -1 is 8. Finda) the value of h and k, [5marks]b) the equation of the curve. [3marks]
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