Posted by **Anonymous** on Sunday, August 12, 2012 at 3:16pm.

Write cos(-83degrees) as a function of a positive angle

Prove that tan^2(alpha)-1+cos^2(alpha)=tan^2(alpha)sin^2(alpha)

## Answer this Question

## Related Questions

- trig - express 20sin theta + 4 cos theta as R sin(theta + alpha) R sin(theta + ...
- trig - FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6...
- Trigonometry - Prove that tan^2(alpha)-1+cos^2(alpha)sin^2(alpha) Please Explain
- trig - evaluate the following in exact form, where the angeles alpha and beta ...
- Math - Given that sin alpha=4/sqrt65, pi/2<alpha<pi, and cos beta=-3/...
- Trigonometry - Find the counterexample to shows that the equation sec (alpha) - ...
- maths (trigonometry) - sin(alpha-bita)=1/2 and cos(alpha+bita)=1/2, where alpha ...
- physics - Two radar stations A and B, are separated by horizontal distance of (...
- trig - in the diagram below.A,B and C are three points in the same horizontal ...
- maths - prove that the length of the perpendicular from the origin to the ...