Posted by **AJ** on Monday, September 23, 2013 at 4:20pm.

If

sin(x) = 1/3 and sec(y) = 29/21

, where x and y lie between 0 and π/2, evaluate the expression using trigonometric identities. (Enter an exact answer.)

cos(2y)

## Answer this Question

## Related Questions

- Trigonometry help - If sin(x) = 1/3 and sec(y) = 13/12 , where x and y lie ...
- cal - If sin(x) = 1/3 and sec(y) = 13/12 , where x and y lie between 0 and π...
- Precalculus - Use one of the identities cos(t + 2πk) = cos t or sin(t + 2&#...
- Math, please help - Which of the following are trigonometric identities? (Can be...
- Calculus (math) - Using your knowledge of trigonometric identities, ﬁnd ...
- Pre Calculus - Use one of the identities cos(t + 2šk) = cos t or sin(t + 2šk) = ...
- Pre Calculus - Use one of the identities cos(t + 2šk) = cos t or sin(t + 2šk) = ...
- Math - Evaluate *Note - We have to find the exact value of these. That I know to...
- Trigonometry - How do I evaluate the trigonometric functions of the quadratic ...
- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...