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Let a, b,c be any real numbers, Supose t...

Let a, b,c be any real numbers, Supose that there are real numbers x,y,z not all zero such that `x=cy+bz,y=az+cx and z =bx +ay` . Then `a^2+b^2+c^2+2abc` is equal to :

A

-1

B

0

C

1

D

2

Text Solution

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The correct Answer is:
C
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