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 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.

Find the expansion of (y+x)^n

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

Write the first three terms in the expansion of (2-(y)/(3))^(6)

Find the number of terms in the expansion of (a+b)^8dot

Write down the first three terms in the expansion of (3 + x)^(-3//2)

In a binomial expansion, ( x+ a)^(n) , the first three terms are 1, 56 and 1372 respectively. Find values of x and a .

If w is a non-real cube root of unity, x is a real number and n in N such that first three terms in the binomial expansion of (w + x)^n are 1,12bar w and 69 w respectively, then

The number of terms in the expansion of (a+b+c)^n , where n in Ndot

The second, third and fourth terms in the binomial expansion (x+a)^n are 240, 720 and 1080, respectively. Find x, a and n.