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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- June 4th 2010, 05:52 AMPaymemoneyQuick Trig Question
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 - June 4th 2010, 05:54 AMmathaddict
- June 4th 2010, 07:31 AMGrandad