In\[\Delta ABC,\]a\[\sin (B-C)+b\sin (C-A)+c\sin (A-B)=\] [ISM Dhanbad 1973]

\[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}\]

\[2({{a}^{2}}+{{b}^{2}}+{{c}^{2}})\]

In\[\Delta ABC,\]a\[\sin (B-C)+b\sin (C-A)+c\sin (A-B)=\] [ISM Dhanbad

1.	In\[\Delta ABC,\]a\[\sin (B-C)+b\sin (C-A)+c\sin (A-B)=\] [ISM Dhanbad 1973]
A.	0
B.	\[a+b+c\]
C.	\[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}\]
D.	\[2({{a}^{2}}+{{b}^{2}}+{{c}^{2}})\]
Answer» B. \[a+b+c\]

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In\[\Delta ABC,\]a\[\sin (B-C)+b\sin (C-A)+c\sin (A-B)=\] [ISM Dhanbad 1973]

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