If \(\rm \frac {a^{n + 1} + b^{n + 1}}{a^n + b^n}\) be the harmonic mean of a and b then value of n is:

If \(\rm \frac {a^{n + 1} + b^{n + 1}}{a^n + b^n}\) be the harmonic

1.	If \(\rm \frac {a^{n + 1} + b^{n + 1}}{a^n + b^n}\) be the harmonic mean of a and b then value of n is:
A.	1
B.	-1
C.	0
D.	2
Answer» C. 0

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If \(\rm \frac {a^{n + 1} + b^{n + 1}}{a^n + b^n}\) be the harmonic mean of a and b then value of n is:

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