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If the planes x-cy-bz=0, cx-y+az=0 and b...

If the planes `x-cy-bz=0, cx-y+az=0 and bx+ay-z=0` pass through a line, then the value of `a^2+b^2+c^2+2abc` is

A

`a^2+b^2+c^2=ab+bc+ca`

B

`a^2+b^2+c^2+2abc=1`

C

`a^2+b^2+c^2=1`

D

`a^2+b^2+c^2+2ab+2bc+2ca+2abc=1`

Text Solution

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The correct Answer is:
(c)
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