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If the angle between the planes r.(mhati...

If the angle between the planes `r.(mhati-hatj+2hatk)+3=0 and r*(2hati-mhatj-hatk)-5=0` is `(pi)/(3)`, then m=

A

2

B

`+-3`

C

3

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
C
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NIKITA PUBLICATION-PLANE-MULTIOLE CHOICE QUESTIONS
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