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sylla
Jan 5, 2010, 08:45 PM
Establish the Identity

secθ-cosθ=sinθtanθ

galactus
Jan 6, 2010, 07:09 AM
Establish the Identity

secθ-cosθ=sinθtanθ

This one is not that bad.

Rewrite

\frac{1}{cos(\theta)}-cos(\theta)

\frac{1-cos^{2}(\theta)}{cos(\theta)}

Now, I assume you know what the numerator is equal to?

Finish up?