Question

The term independent of x in the expansion of (1-x)^2/(1+x)^2​

Answer 1

Answer:

=(1-×)^2/(1+×)^2

=(1+×^2 -2×)/(1+×^2+2×)

=-1

Answer 2

Answer:

(1-×)^2/(1+×)^2

1-×^2-2×/1+×^2+2×

then the answer is 1.