_ -1 ^3 ( ⁻¹ ( x x^2+1 )+ ⁻¹ ( x^2+1 x ) ) d x=

Step-by-step solution

array rlr Let I & = _ -1 ^3 ( ⁻¹ ( x x^2+1 )+ ⁻¹ ( x^2+1 x ) ) d x & = _ -1 ^3 ( ⁻¹ ( x^2+1 x )+ ⁻¹ ( x^2+1 x ) ) d x & = _ -1 ^3 2 ~d x [ ⁻¹(x)= ⁻¹ ( 1 x ) ] & = 2 [x]_ -1 ^3 & & = 2 (4) & array OBJECT END]