 Ask Remember Me? orangedreamgirl Posts: 2, Reputation: 1 New Member #1 Nov 9, 2008, 04:01 PM
pre cal proofs

1) Sin/ Csc + Cos/ Sec =1

2) sin^2/Sec^2-1 = Cos^2

3) tan/sin =sec

4) 1/1-sin^2=1+tan^2

I really need helpp! Unknown008 Posts: 8,076, Reputation: 723 Uber Member #2 Nov 13, 2008, 02:21 AM

I'll do the last one. The first one, I don't understand. The second and third are simple, if you know your formulae. Unknown008 Posts: 8,076, Reputation: 723 Uber Member #3 Nov 13, 2008, 02:26 AM

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