Consider The Expansion of (1+x)²n+1
For the next three (03) items that follow:
Consider the expansion of (1+x)²n+1
- If the coefficients of xr and xr+1 are equal in the expansion, then r is equal to
(a)n (b) 2n-1/2 (c) 2n+1/2 (d) n+1 - The average of the coefficients of the two middle terms in the expansion is
(a) 2n+1Cn+2 (b) 2n+1Cn (c) 2n+1Cn-1 (d) 2nCn+1 - The sum of the coefficients of all the terms in the expansion is
(a) 22n-1 (b)4 n-1 (c) 2 x 4n (d) None of the above