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The angle between planes barr.(2hati+hat...

The angle between planes `barr.(2hati+hatj-hatk)=3andbarr.(hati+2hatj+hatk)=1` is

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
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