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Proving Basic Problems Math Calculus Precalculus

11/18/15

Prove v(3cosx+4sinx)2+(4cosx-3sinx)2 = 5
Proving Basic Problems: I have to prove that one side equals the other using identities.   √(3cosx+4sinx)2+(4cosx-3sinx)2 = 5   Please show the steps or even try to explain the process to me! :)
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