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May 26, 2015

Homework Help: trigonometry

Posted by Britt on Tuesday, December 20, 2011 at 7:25pm.

Use identities to simplify each expression.
1) (sin2t) (cos5t) + (cos2t) (sin5t)
2) {1/(sec x - 1)} - {1/(sec x +1)} = 2 cot^2 x

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