The acute angle between the line r=(hati...

The acute angle between the line `r=(hati+2hatj+hatk)+lambda(hati+hatj+hatk)` and the plane `r.(2hati-hatj+hatk)=5`

A

`cos^(-1)((sqrt2)/(3))`

B

`sin^(-1)((sqrt2)/(3))`

C

`tan^(-1)((sqrt2)/(3))`

D

`sin^(-1)((sqrt2)/(sqrt3))`

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The correct Answer is:

B

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