If the coordinates of the vertices A, B, C of the triangle ABC be \[(-\ 4,\ 2),\] \[(12,\ -2)\] and \[(8,\ 6)\]respectively, then \[\angle \ B\]=

\[{{\tan }^{-1}}\left( -\frac{6}{7} \right)\]

\[{{\tan }^{-1}}\left( \frac{6}{7} \right)\]

\[{{\tan }^{-1}}\left( -\frac{7}{6} \right)\]

\[{{\tan }^{-1}}\left( \frac{7}{6} \right)\]

If the coordinates of the vertices A, B, C of the triangle ABC be \[(-

1.	If the coordinates of the vertices A, B, C of the triangle ABC be \[(-\ 4,\ 2),\] \[(12,\ -2)\] and \[(8,\ 6)\]respectively, then \[\angle \ B\]=
A.	\[{{\tan }^{-1}}\left( -\frac{6}{7} \right)\]
B.	\[{{\tan }^{-1}}\left( \frac{6}{7} \right)\]
C.	\[{{\tan }^{-1}}\left( -\frac{7}{6} \right)\]
D.	\[{{\tan }^{-1}}\left( \frac{7}{6} \right)\]
Answer» E.

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If the coordinates of the vertices A, B, C of the triangle ABC be \[(-\ 4,\ 2),\] \[(12,\ -2)\] and \[(8,\ 6)\]respectively, then \[\angle \ B\]=

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