Question

Find the middle term in the expansion of (2/3x-3/2y)^20

Answer 1

T(n+1)/2 th and T(n+3)/2 th in this case if 'n' is odd. Ex.: Find the middle – term in the expansion of [ 3x – (x3 / 6)]9. Sol.: Here total no. of terms are 10 (even).