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A (-1,2-3), B(5,0,-6), C(0,4,-1) are thr...

A (-1,2-3), B(5,0,-6), C(0,4,-1) are three points, Show that direction cosines of the bisectors of `lfloorBAC` are proportional to (25,8,5)and (-11,20,23).

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The correct Answer is:
`(-11,20,23)`
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