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Precalculus
Trigonometric Sum Identities — Unit test
Question 21
21
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Trigonometric Sum Identities — Unit test
Question 21 • Precalculus
Which is equivalent to sin-1(0.75)? Round your answer to the nearest hundredth of a radian.
Answer
A
–1.33
B
–0.75
C
0.68
D
0.85
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