Ann C.

asked • 12/09/14

How do i establish each Identity?

1. (csc x)(cos x) = cot x

2. 1 + tan2(-x) = sec2x

3. cos x(tan x + cot x) = csc x

4. tan x cot x - cos2x = sin2x

5. secx -1)(sec + 1) = tan2x

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