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The angle between the planes 2x + y - z ...

The angle between the planes 2x + y - z = 9 and x + 2y + z = 7 is …………

A

`cos^(-1)(5//6)`

B

`cos^(-1)(5//36)`

C

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

D

`cos^(-1)(1//12)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
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