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If x=log(a)(bc),y=log(b)(ca)" and "z=log...

If `x=log_(a)(bc),y=log_(b)(ca)" and "z=log_(c)(ab)`, then which of the following is equal to 1 ?

A

`x+ y+ z`

B

`(1+ x)^(-1) + (1+ y)^(-1) + (1+ z)^(-1)`

C

xyz

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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