If (a^n+b^n)/(a^(n-1)+b^(n-1)) is the A....

If `(a^n+b^n)/(a^(n-1)+b^(n-1))` is the A.M. between a and b, then find the value of n.

A

0

B

1

C

`-1`

D

none of these

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The correct Answer is:

B

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