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If a + b + c = 0 then the value of (...

If ` a + b + c = 0 ` then the value of `( a + b - c )^(2) + ( b + c - a) ^(2) + ( c + a - b)^(2)` is

A

0

B

8 abc

C

`4 (a^(2) + b^(2) + c^(2))`

D

` 4 (a b + bc + ca) `

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The correct Answer is:
C
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