2 ∫ sinx/1+x²dx=( ) -2

2 ∫ sinx/1+x²dx=( ) -2

Since SiNx is an odd function, 1 + X & # is an even function
The product of odd function and even function is still odd function
So according to the parity of definite integral
∫(- 2→2) sinx/(1 + x²) dx = 0