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

The first three terms in the expansion of (1+x+x^2)^10 are

If the first three terms in the expansion of (1+ax)^n are 1,-21x and 216x^2 respectively, prove that a=-3/7 and n=49.

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

State, first three terms in the expansion of (5 + 4x)^(-1/4)

Write down the first three terms in the expansion of (8 - 7x)^10

If the first three terms in the expansion of (1+ax)^n are 1,12 x , 64x^2 , find 'n' and 'a'

If the first three terms in the expansion of (1+ax)^n are 1,6x and 16x^2 , find a and n

The first three terms in the expansion of (1+a x)^n are 1,12 x,64 x^2 . Find n and a.