Question

Use identities to find values of the sine and cosine functions of the function for the angle measure. 2x, given tan x = -3 and cos x > 0 cos 2x = frac{-4}{5} (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) sin 2x = frac{-3}{5} (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

          Use identities to find values of the sine and cosine functions of the function for the angle measure.
2x, given tan x = -3 and cos x > 0
cos 2x = frac{-4}{5}
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
sin 2x = frac{-3}{5}
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

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$Use identities to find values of the sine and cosine functions of the function for the angle measure. 2x, given tan x = -3 and cos x > 0 cos 2x = frac-45 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) sin 2x = frac-35 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)$

Added by Patrick L.

Introductory and Intermediate Algebra for College Students 4th

Robert Blitzer 4th Edition

Instant Answer

Solved by Expert Khushbu Rani

04/16/2023

Step 1

Given that $\tan x = 3$, we have $\frac{\sin x}{\cos x} = 3$. Since $\cos x > 0$, we can assume that $\cos x = 1$ (since cosine is positive in the first quadrant where $\tan x = 3$). Therefore, $\sin x = 3 \cdot 1 = 3$. Show more…

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