Find a, b and n in the expansion of `(a+b)^n`if the first three terms of the expansion are 729, 7290 and 30375, respectively.

Find a,b and n in the exapnsion of (a+b)^(n) if the first three terms of the expansion are 729 , 7290 and 30375 , respectively .

Find the a,b, and n in th expansion of (a+b)^(n) if the first three terms of the expansion are 729,7290, and 30375, respectively.

Find the a ,b ,a n dn in th expansion of (a+b)^n if the first three terms of the expansion are 729, 7290, and 30375, respectively.

Consider the expansion of (x+a)^n Find the (r+1)^(th) term in the expansion

Write the first three terms in the expansion of (1+ax)^n,ninN

If the first three terms in the expansion of (1+ax)^(n) are 1,8x,24x^(2) respectively,then a=

Find the number of terms in the expansion of (a+b+c)^(n).