" 5."int(x^(2))/(x^(4)+x^(2)+1)dx

int(1)/(x^(4)+5x^(2)+1)dx

"int_(-1)^(4)(x^(5)+2x^(2)+x)dx

int(x^(5))/((4x^(2)+ 1)^(4))dx is equal to

Evaluate: "int(x^(4)-1)/(x^(2)+5)dx

int (x dx)/(4x^(4)+4x^(2)+5)

" (5) "int(x^3)/(1+2x^(4))dx

int(5x^2)/((x+1)(x^2+4))dx=

Evaluate: (i) int(5x^(2) + 2x^(-5) - 7x + 1/(sqrt(x)) +5/x) dx (ii) int(3sinx - 4 cosx + 5 sec^(2) x - 2cosec^(2)x) dx (iii) int(1-x)(2+3x)(5-4x)dx (iv) int((3x^(4) - 5x^(3) + 4x^(2) -x + 2)/(x^(3)))dx , (v) int(x^(2) + 1/(x^(2)))^(3) dx

int((1)/(5+4x^(2))+a^(3x+2))dx

int(dx)/(x^(2)-4x+5)