Answers Precalculus Applying Trigonometric Identities and Equations — TestQuestion 7

7

QuizMultiple Choice

Applying Trigonometric Identities and Equations — Test

Question 7 • Precalculus

Suppose sine of x is equal to negative 3 fifths and cosine of x is less than 0 What is the value of cosine of 2 x ?

Answer

A

16 over 25

B

7 over 25

C

negative 16 over 25

D

negative 7 over 25

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