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Find the angle between the planes x+2y+2...

Find the angle between the planes `x+2y+2z-5=0 and 3x+3y+2z-8=0`.

A

`1/2 sec ^(-1) 3`

B

`2sec ^(-1) 3`

C

`cos ^(-1) ((7)/(sqrt35))`

D

`2 sec ^(-1) (4)`

Text Solution

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The correct Answer is:
A
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