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The image of plane p (1) in the plane mi...

The image of plane `p _(1)` in the plane mirror `p _(2)` is : Let two planes `p_(1): 2x -y +z =2 and p _(2) : x+ 2y -z=3` are given.

A

`x + 7y -4x + 5=0`

B

`3x + 4y -5z+ 9=0`

C

`7x- y+ 2z-9=0`

D

None of the above

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The correct Answer is:
C
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