Let a=2bari + barj-bark and barb = barI ...

Let `a=2bari + barj-bark` and `barb = barI +3bark`. If `barc` is a unit vectors such that `[bara barb barc]` is maximum, then `barc` is

A

`1/(sqrt14)(3bari+barj+2bark)`

B

`1/(sqrt6)(2bari+barj-bark)`

C

`1/(sqrt10)(bari+3bark)`

D

`1/(sqrt(59))(3bari-7barj-bark)`

Text Solution

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The correct Answer is:

D

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