The term independent of x in the expansion of  x+1x2/3-x1/3+1-x-1x-x1/210,x≠1 is  =

The given binomial expansion is x+1x23−x13+1−x−1x−x1210This can be simplify as x13+1x23−x13+1x23−x13+1−x−1x+1xx−110=x13+1−1−x−1210=x13−x−1210r=npp+q=101313+12=4 To get independent term r=4  ∴T5=C4   10=210