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If veca and vecb are two unit vectors an...

If `veca and vecb` are two unit vectors and `theta` is the angle between them, then the unit vector along the angular bisector of `veca and vecb` will be given by

A

`+-(veca + vecb)/2`

B

`+-(veca + vecb)/(2 cos theta)`

C

`+-(veca + vecb)/(2 cos theta/2)`

D

`+-(hata + hatb)/(|hata + hatb|)`

Text Solution

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The correct Answer is:
C, D
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