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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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