If the A.M between a and b is m times th...

If the A.M between a and b is m times their H.M then a:b is

A

`(sqrtm + sqrt(m+1))/(sqrtm-sqrt(m+1))`

B

`(sqrtm-sqrt(m-1))/(sqrtm + sqrt(m+1))`

C

`(sqrtm + sqrt(m-1))/(sqrtm-sqrt(m-1))`

D

`(sqrtm - sqrt(m+1))/(sqrtm+sqrt(m+1))`

Verified by Experts

The correct Answer is:

C

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