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The vector vec c , directed along the ...

The vector ` vec c `, directed along the internal bisector of the angle between the vectors `vec c = 7 hati - 4 hatj - 4hatk and vecb = -2hati - hatj + 2 hatk " with " |vec c| = 5 sqrt(6),` is

A

`2/3(hati-7hatj+2hatk)`

B

`5/3(hati-7hatj+2hatk)`

C

`7/3(hati-7hatj+hatk)`

D

`2/3(hati+7hatj-2hatk)`

Text Solution

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The correct Answer is:
B
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