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The reflection of the point P (alpha, be...

The reflection of the point `P (alpha, beta, gamma)` in the xy-plane is

A

`(alpha, beta, 0)`

B

`(0,0,gamma)`

C

`(-alpha, -beta, gamma)`

D

`(alpha, beta, -gamma)`

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The correct Answer is:
D
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VMC MODULES ENGLISH-THREE DIMENSIONAL GEOMETRY -JEE ADVANCED (ARCHIVE)
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  14. If the distance of the point P(1,-2,1) from the plane x+2y-2z=alpha,...

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  16. Consider three planes P(1):x-y+z=1, P(2):x+y-z=-1 and P(3):x-3y+3z=2...

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