" 4.) "(x+3)/((x+1)^(4))dx

int(x+3)/((x+1)^(4))dx

int(x+3)/((x+1)^(4))dx

int(x+3)/((x+1)^4)dx

int(x+3)/((x+1)^4)\ dx

int(x^(3))/(x^(4)+1)dx

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

int (x^(3))/(1+x^(4))dx=

The integral int(3x^(13) + 2x^(11))/((2x^(4) + 3x^(2) +1)^(4))dx is equal to (x^(12))/(k(2x^(4) + 3x^(2) + 1)^3)+C . The value of (k) is _________. (where C is a constant of integration)

int(x^3dx)/((1+x^(4))

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