Technology 13.1 Roots with Indices Greater Than 2 Figure 13.1a a. b. c. d. For Figure 13.1a, The...
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Technology 13.1 Roots with Indices Greater Than 2 3 4 4 4 Evaluate: . 12 . 16 . 16 . 16 a b c d Figure 13.1a a. b. c. d. For Figure 13.1a, The cubed root is option 4 under the MATH menu. a. MATH ENTER ENTER MATH ENTER MATH 6 1 (-) ( 5 ) 6 1 ( 5 4 4 (-) ) 6 1 ( 5 4 ) 2 1 (-) 4 b. The xth root is option 5 under the MATH menu. Ent the xth root. Enclose the radicand in a set of pa c. d. MATH ) 1 of 2
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Transcript of Technology 13.1 Roots with Indices Greater Than 2 Figure 13.1a a. b. c. d. For Figure 13.1a, The...
Technology13.1Roots with Indices
Greater Than 2
3 4 4 4Evaluate: . 12 . 16 . 16 . 16 a b c d
Figure 13.1a
a.b.c.d.
For Figure 13.1a,The cubed root is option 4 under the MATH menu.
a.
MATH ENTER
ENTERMATH
ENTERMATH
61(-)(5
)61(54
4
(-)
)61(54
)21(-)4
b.
The xth root is option 5 under the MATH menu. Enter the index before the xth root. Enclose the radicand in a set of parentheses.
c.
d. MATH ) 1 of 2
Technology13.1Roots with Indices
Greater Than 2
3 4 4 4Evaluate: . 12 . 16 . 16 . 16 a b c dFigure 13.1b
For Figure 13.1b,
The error message “NONREAL ANS” means that we are attempting to take an even root of a negative number.
ENTER
2 of 2
Technology13.8
Figure 13.8a
Imaginary Numbers
Write 5 in terms of . i
For Figure 13.8a,
Change the calculator to a + bi mode by highlighting “a + bi” under the MODE menu.MODE
ENTER
QUIT
i
2nd
2nd
▼ ▼ ►▼▼▼▼ ENTER
Return to the home screen.
Enter the square-root expression to be written in terms of i.)5(-)
This is an approximate decimal value for Enter this value to check.5.i
2nd 2nd 5 ) ENTER 1 of 2
Technology13.8
Figure 13.8b
Imaginary Numbers
Write 5 in terms of . i
For Figure 13.8b,
MODE
ENTER
QUIT
2nd
2nd
2nd
►▼
ENTER
)5(-)
5i2nd2nd 5 )
ENTER
For ease in reading approximate values, set the calculator to the number of decimal places you want to round to. For example, round to two decimal places the values found in Figure 13.8a.Set the calculator to round to two decimal places.
►►
Reenter the square-root expression.
ENTRY
Reenter to check i
You could recall the previous entries by using . 2 of 2
