- #1

Confusedbrah

- 3

- 0

## Homework Statement

1. 1 + sec^(2)xsin^(2)x = sec^(2)x

2. sinx/1-cosx + sinx/1+cosx = 2cscx

## Homework Equations

## The Attempt at a Solution

For the first problem, this is the best I got:

1 + sec^(2)x(1-cos(2)x)

For the second problem, I added the fractions together and got:

(sinx + sinxcosx + sinx - sinxcosx) / ((1-cosx) (1-cosx)) =

(2sinx) / (1-cosx) (1+cosx) =

(2sinx) / (1-cos^(2)x) =

(2sinx) / (sin^(2)x)