Evaluate :
`int( 3x^(-7) + x^(-1) ) dx`

Evaluate: int(x^(7))/(x+1)dx

Evaluate int_0^1 x^7dx

Evaluate: int(2x^2+7x-3)/(x^2(2x+1))\ dx

Evaluate: int(x)/(x^(3)-1)dx

Evaluate : int( x^3 + 1/x^3 - sqrt(x) ) dx

Evaluate: int(3x^(5))/(1+x^(12))dx

Evaluate int_(1)^(3)x^(3)dx

Evaluate : (i) int(3x^(2))/((1+x^(6)))dx (ii) int(x^(3))/((x^(2)+1)^(3))dx (iii) (x^(8))/((1-x^(3))^(1//3))dx

Evaluate: int(1)/(x^(4)+3x^(2)+1)dx

Evaluate int 1/(3x+4x^(-9))dx