Last edited by something3k; Oct 7th 2008 at 06:30 PM. Reason: it was kind of messy
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Originally Posted by something3k start on the left hand side and use the double angle formula for sine: note that
so would that equal
Originally Posted by something3k so would that equal no, follow the rule: sin(2A) = 2*sinA*cosA
Hello, something3k! Identity: . Or start on the right side . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ahh i seee, thanks a lot you guys i am thinking a little too hard.
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