Posted by **stacey graham** on Friday, March 26, 2010 at 9:32am.

given that cos(theta)= (3/5) and sin (theta)<0,

find sin(2 theta)

cos (2 theta)

tan (2theta)

## Answer this Question

## Related Questions

- Calculus - I wanted to confirm that I solved these problems correctly (we had to...
- Algebra II - Which of the following expressions are not equal to 1? A) sin^2 ...
- Algebra II - Multiple Choice Which expression is NOT equivalent to 1? (theta) ...
- precalc h - sin(theta)/1-cos(theta) + 1-cos(theta)/sin(theta) = 2csc(theta) That...
- trigonometry - can you correct the rest for me please? Express each as a ...
- trigonometry - can you correct the rest for me please? Express each as a ...
- trigonomtry - can you correct the rest for me please? Express each as a function...
- Trigonometry - Thank you STEVE!!!!! Suppose that Cos (theta) = 1/square root 2 ...
- Trig - Which expression equivalent to: cos(theta + pi/2). A)cos theta B)-cos ...
- Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...