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If a unit vector " -> a" makes an ang...

If a unit vector `" -> a"` makes an angle `"pi"/3` with ` hat"i","\ ""pi"/4` with ` hat"j"` and an acute angle `"theta"` with ` hat"k",` then find the value of `"theta"dot`

A

`(5pi)/6`

B

`pi/4`

C

`(5pi)/12`

D

`(2pi)/3`

Text Solution

Verified by Experts

The correct Answer is:
D
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