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The angle between the planes vecr.(2ha...

The angle between the planes
`vecr.(2hati-hatj+hatk)=6` and `vecr.(hati+hatj+2hatk)=5` is

A

(a) `(pi)/(6)`

B

(b) `(pi)/(4)`

C

(c) `(pi)/(3)`

D

(d) `(pi)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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