Q. What is the middle term in the expansion of 1 + x 20 ? Share with your friends Share 0 Aarushi Mishra answered this If n is even then n2+1th term is is the middle term in the expansion of (x+y)nThereforein the expansion of 1+x20, 202+1th term i.e. 11th term will be the middle termTr=Cr-1n xn-r-1 yr-1HereTr=Cr-120 12-r-1 xr-1=Cr-120 xr-1T11=C1020 x10 1 View Full Answer