Posted by **Kelsey ** on Monday, May 28, 2012 at 2:19pm.

1.) Find an expression equivalent to sec theta sin theta cot theta csc theta.

tan theta

csc theta

sec theta ~

sin theta

2.) Find an expression equivalent to cos theta/sin theta .

tan theta

cot theta ~

sec theta

csc theta

3.) Simplify (tan^2 theta + 1)/(tan^2 theta) .

csc2 theta

–1

tan2 theta

1 ~

4.) Use a sum or difference identity to find the exact value of sin 15°.

-(sqrt)2 - (sqrt)6/ 4

(sqrt)6 - (sqrt)2/ 4 ~

(sqrt)6 + (sqrt)2/ 4

(sqrt)2 - (sqrt)6/ 4

5.) Which expression is equivalent to cos (theta – 2pi)?

–cos theta

sin theta

cos theta ~

–sin theta

the ones with ~ are my answers!

## Answer This Question

## Related Questions

- Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...
- Algebra II - Multiple Choice Which expression is NOT equivalent to 1? (theta) ...
- trig - If sin theta is equal to 5/13 and theta is an angle in quadrant II find ...
- Precalculus(NEED HELP ASAP PLEASE!!) - cot(theta)= 3 pi < theta < 3pi/2 ...
- Calculus - I wanted to confirm that I solved these problems correctly (we had to...
- Math - 1. Let (-7, 4) be a point on the terminal side of (theta). Find the exact...
- I dont think drawing a picture will help me drwls - Which expression is ...
- trig - find an expression equivalent to sec theta sin theta cot theta csc theta
- Math - 1)Find cos theta if sin theta=3/5 and 90 degrees<theta<180 degrees...
- Algebra II - Which of the following expressions are not equal to 1? A) sin^2 ...

More Related Questions