If \[\sin A=\sin B\]and \[\cos A=\cos B,\]then [EAMCET 1994]

1.	If \[\sin A=\sin B\]and \[\cos A=\cos B,\]then [EAMCET 1994]
A.	\[\sin \frac{A-B}{2}=0\]
B.	\[\sin \frac{A+B}{2}=0\]
C.	\[\cos \frac{A-B}{2}=0\]
D.	\[\cos (A+B)=0\]
Answer» B. \[\sin \frac{A+B}{2}=0\]

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If \[\sin A=\sin B\]and \[\cos A=\cos B,\]then [EAMCET 1994]

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