Originally Posted by

**ixibelieve** I was just wondering if someone could help me with these problems.

*=theta

1) add, then simplify. (1/1-cosx) + (1/1-cosx)

2) simplify: sinx+sinxcot^2x

3) find all solutions in the interval [ 0, 2pie): cosx-1=0

4) find all solutions in the interval [ 0, 2pie): 1+tan^2*+tan^4*-1

5) find all solutions in the interval [ 0, 2pie): 2sin^2x=sinx

6) find all solutions in the interval [ 0, 2pie): sin2x=0

7) find all solutions in the interval [ 0, 2pie): 2cos(x/2)-sqrt3=0

8) simplify: (tan7x+tan6X)/(1-tan7x)(tan5x)