Write the number of terms in the expansion of {(2x + y3)4}7

Given:{(2x + y3)4}7 = (2x + y3)28So total number of terms = n+1= 28+1= 29

Q11 of 51 Page 18

Write the number of terms in the expansion of {(2x + y³)⁴}⁷

Given:

{(2x + y³)⁴}⁷ = (2x + y³)²⁸

So total number of terms = n+1

= 28+1

= 29

If a and b denote the sum of the coefficients in the expansions of and respectively, then write the relation between a and b.

Write the coefficient of the middle term in the expansion of (1 + x)²ⁿ

Find the sum of coefficients of two middle terms in the binomial expansion of (1 + x)^2n-1

Find the ratio of the coefficients of and in the expansion of .