Which of the following is correct?
A) ∫ from 0 to x of A sin Bx dx = A/B(cos Bx – 1)
B) ∫ x(a + bx) dx = x ∫(a +bx) dx + (a +bx) ∫ x dx
C) ∫ from (r – a) to (r + a) of –(GM/2ar) dz = -GM/r
D) d(1 + x^1/4){1 + x^(1/2)}{1 – x^(1/4)}/dx, then dy/dx = -1
More than one options are correct. I got only D. Which others are correct?