Thursday
August 28, 2014

Homework Help: Math - Trig

Posted by Liath on Monday, September 21, 2009 at 8:42pm.

I'm trying to verify these trigonometric identities.

1. 1 / [sec(x) * tan(x)] = csc(x) - sin(x)

2. csc(x) - sin(x) = cos(x) * cot(x)

3. 1/tan(x) + 1/cot(x) = tan(x) + cot(x)

4. csc(-x)/sec(-x) = -cot(x)

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