If the coefficients of (r-5)th and (2r-1)th terms in the expansion of
`(1+x)^(34)` are equal, find r.

If the coefficients of (r-5)^( th) and (2 r-1)^ (th) terms in the expansion of (1+x)^(34) are equal, find r .

What is the coefficient of the (r+1)^(th) term in the expansion of (1+x)^n ?

What is the coefficient of 5th, 6th and 7th terms in the expansion of (1+x)^n ?

What are the coefficients of (2r+1)^(th) and (r+2)^(th) terms in the expansion of (1+x)^43 ?

The coefficients of the (r-1)^(th),r^(th) and (r+1)^(th) terms in the expansion of (x+1)^n are in the ratio 1:3:5 . Find n and r

Find the 4th term in the expansion of (x-2y)^12