5-3 Solving Trigonometric Equations Worksheet With Answers Page 27
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28Now find the standard deviation by taking the square
root of the variance.
5-3 Solving Trigonometric Equations
The standard deviation is about 3.5.
The correct answer is H.
75.
77.
SAT/ACT For all positive values of m and n, if
Which of the following is not a solution of 0 = sin
2
+ cos tan
?
= 2, then x =
A
A
B
B
C 2π
C
D
D
SOLUTION:
Try choice A.
E
SOLUTION:
Try choice B.
The correct answer is D.
76.
If cos x = –0.45, what is sin
?
Try choice C.
F – 0.55
G – 0.45
H 0.45
J 0.55
Try choice D.
SOLUTION:
The correct answer is D.
78.
REVIEW The graph of y = 2 cos
is shown.
The correct answer is H.
= 1?
Which is a solution for 2 cos
77.
Which of the following is not a solution of 0 = sin
2
+ cos tan
?
A
B
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Page 27
C 2π
F
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