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The acute angle between the planes x+3y-...

The acute angle between the planes x+3y-z+2=0 and 2 x-3y+z-1=0 is

A

`(cos^(-1))(2sqrt2)/sqrt77`

B

`(cos^(-1))(4sqrt2)/sqrt77`

C

`(cos^(-1))sqrt2/sqrt77`

D

`(cos^(-1)) 2/sqrt77`

Text Solution

Verified by Experts

The correct Answer is:
B
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HIMALAYA PUBLICATION-THREE DIMENSIONAL GEOMETRY-QUESTION BANK
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