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The measure of acute angle between the l...

The measure of acute angle between the lines whose direction ratios are `3, 2, 6 and `-2, -1, 2` is

A

`cos^(-1)((1)/(7))`

B

`cos^(-1)((8)/(15))`

C

`cos^(-1)((1)/(3))`

D

`cos^(-1)((8)/(21))`

Text Solution

Verified by Experts

`cos^(-1)((8)/(21))`
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