Posted by **AwesomeGuy** on Sunday, February 17, 2013 at 1:42am.

Verify the identities.

1.) √1-COSθ/1+COSθ= 1+SINθ/SINθ

2.) SEC X SIN(π/2-X)= 1

3.) CSC X(CSC X-SIN X)+SIN X-COS X/SIN

X + COT X= CSC²X

4.) CSC^4 X-2 CSC²X+1= COT^4 X

5.) CSC^4 θ-COT^4 θ= 2 CSC²θ-1

6.) TAN^5 X= TAN³X SEC²X-TAN³X

7.) COS³X SIN²X= (SIN²X-SIN^4X)COS X

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