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June 30, 2015

Homework Help: Pre-Calculus

Posted by Peter on Tuesday, July 31, 2012 at 8:50pm.

If θ represents an angle such that sin2θ = tanθ - cos2θ, then sin θ - cosθ =

A. -√2
B. 0
C. 1
D. 2√2

What equation can I use to solve this problem?

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