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If x^(2) = y + z, y^(2) = z + x, z^(2) ...

If ` x^(2) = y + z, y^(2) = z + x, z^(2) = x + y` then the value of `(1)/( x + 1) + (1)/( y + 1) + (1)/( z+ 1)` is

A

`-1`

B

1

C

2

D

4

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