SecA TanA ----- - ----- = 1 CosA Cot A Please help, I don't know where to start or how to complete this.
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Rewrite everything in terms of sine and cosine.
Think of the pythagorean identity See how it can be re-arranged to look like Now, how are and related? How are and related?
Last edited by amillionwinters; Nov 9th 2012 at 05:10 PM.
Hello, hachm361! Do you know any basic identities . . . like these? . . If you don't, you need more help than we can offer. We have: .
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