`(r+1)^(th)` term in the expansion of `(1-x)^(-4)` will be

If the coefficient of (r +1)^(th) term in the expansion of (1 +x)^(2n) be equal to that of (r + 3)^(th) term , then

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

Find the 7^(th) term in the expansion of (1-2x)^(7)

If the coefficient of rth term and (r+1)^(th) term in the expansion of (1+x)^(20) are in ratio 1:2 , then r is equal to

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

n th term in the expansion of (x+(1)/(x))^(2n)

If the coefficients of (2r+4)^(th) term and (r-2)^(th) term in the expansion of (1+x)^(18) are equal then r=