If \[\tan \frac{B-C}{2}=x\cot \frac{A}{2},\]then \[x=\] [MP PET 1992, 2002]

If \[\tan \frac{B-C}{2}=x\cot \frac{A}{2},\]then \[x=\] [MP PET 1992,

1.	If \[\tan \frac{B-C}{2}=x\cot \frac{A}{2},\]then \[x=\] [MP PET 1992, 2002]
A.	\[\frac{c-a}{c+a}\]
B.	\[\frac{a-b}{a+b}\]
C.	\[\frac{b-c}{b+c}\]
D.	None of these
Answer» D. None of these

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If \[\tan \frac{B-C}{2}=x\cot \frac{A}{2},\]then \[x=\] [MP PET 1992, 2002]

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