[" (4) "int e^(3x)dx=],[[" (A) "k+e^(3x)," (B) "k-e^(3x)],[" (C) "k+3e^(3x)," (D) "k+(e^(3x))/(3)]]

int x^(2)e^(3x)dx

int_2^3e^(3x)dx=?

int e^x/(e^x+3)dx

int (e^(3x)+1)^2 e^(3x)dx

int e^x cos 3x dx

int (3x^2+e^x) dx

int(e^(3x))/((5+e^(3x))^(4))dx

int x^2 e^(3x) dx=............ A) (1/3) x^2 e^(3x) - (2/9) x e^(3x) + (2/27) e^(3x) + c B) -(1/3) x^2 e^(3x) - (2/9) x e^(3x) + (2/27) e^(3x) + c C) (1/3) x^2 e^(3x) + (2/9) x e^(3x) - (2/27) e^(3x) + c D) (1/3) x^2 e^(3x) - (2/9) x e^(3x) - (2/27) e^(3x) + c

(i) int e^(3x) cos 5x dx (ii) int e^(3x) sin 4x dx