If the coefficient of rth, (r+1)th and (...

If the coefficient of rth, (r+1)th and (r+2)th terms in the binomial expansion of `(1+y)^(m)` are in A.P. then m and r satisfy the equation:

A

`m^2-m(4r-1)+4r^2-2=0`

B

`m^2-m(4r+1)+4r^2+2=0`

C

`m^2-m(4r+1)+4r^2-2=0`

D

`m^2-m(4r-1)+4r^2+2=0`

Verified by Experts

The correct Answer is:

B

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