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If (x)/((b-c)(b+c-2a))=(y)/((c-a)(c+a-2b...

If `(x)/((b-c)(b+c-2a))=(y)/((c-a)(c+a-2b))=(z)/((a-b)(a+b-2c))` then the value of `(x+y+z)` is :

A

`-(a+b+c)`

B

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

C

1

D

0

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The correct Answer is:
D
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