Hi Can someone tell me how to do this question: 1) Convert 4sin2x+5cos2x into a single cosine wave form Acos(2x+C) P.S
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Originally Posted by Paymemoney Hi Can someone tell me how to do this question: 1) Convert 4sin2x+5cos2x into a single cosine wave form Acos(2x+C) P.S in general , where and It works the same for but you flip the sign
Hello Paymemoney Originally Posted by Paymemoney Hi Can someone tell me how to do this question: 1) Convert 4sin2x+5cos2x into a single cosine wave form Acos(2x+C) P.S Just to expand a little on mathaddict's reply, use the identity as follows: Square (1) and (2) and add: Divide (2) by (1): Grandad
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