a. (cos 2 x=2 cos ^{2} x-1). b. (sin 3 x=A sin ^{3} x+B sin x), for

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a. $\cos 2 x=2 \cos ^{2} x-1$.

b. $\sin 3 x=A \sin ^{3} x+B \sin x$, for what values of $A$ and $B$ ?

c. $\sec \theta+\tan \theta=\tan \left(\frac{\theta}{2}+\frac{\pi}{4}\right)$.

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A Course In Mathematical Methods For Physicists

ISBN: 9781138442085

1st Edition

Authors: Russell L Herman

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Question Posted: May 24, 2024 02:01 AM

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a. (cos 2 x=2 cos ^{2} x-1). b. (sin 3 x=A sin ^{3} x+B sin x), for

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Prove the following identities usi...View the full answer

A Course In Mathematical Methods For Physicists

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