On simplifying \[\frac{{{\sin }^{3}}A+\sin 3A}{\sin A}+\frac{{{\cos }^{3}}A-\cos 3A}{\cos A},\] we get

On simplifying \[\frac{{{\sin }^{3}}A+\sin 3A}{\sin A}+\frac{{{\cos }^

1.	On simplifying \[\frac{{{\sin }^{3}}A+\sin 3A}{\sin A}+\frac{{{\cos }^{3}}A-\cos 3A}{\cos A},\] we get
A.	\[\sin 3A\]
B.	\[\cos 3A\]
C.	\[\sin A+\cos A\]
D.	3
Answer» E.

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On simplifying \[\frac{{{\sin }^{3}}A+\sin 3A}{\sin A}+\frac{{{\cos }^{3}}A-\cos 3A}{\cos A},\] we get

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