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If 2^(x)=3^(y)=6^(-z), then the value of...

If `2^(x)=3^(y)=6^(-z)`, then the value of `1/x+1/y+1/z-`

A

0

B

1

C

`(3)/(2)`

D

`-(1)/(2)`

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The correct Answer is:
A
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