If the planes `x=cy+bz, y=az+cx,z=bx+ay` pass through a line then `a^2+b^2+c^2+2abc=` ?

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Q 1377423386.     If the planes `x=cy+bz, y=az+cx,z=bx+ay` pass through a line then `a^2+b^2+c^2+2abc=` ?
A

`1`

B

`-1`

C

`2`

D

`0`

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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