-4 / x3
Chat with our AI personalities
y = 3 + 2x - 4x^(2) dy/dx = 2 - 8x ( The derivative).
1/(1-x2 )1/2
-1/(2*x2)
d/dx(lnx2) = 2/x ===== d/dx2(2/x) use product rule 2'*x - 2 *x'/x2 = - 2/x2 -----------
d/dx (x2+ 9)1/2= 1/2*(x2+ 9)-1/22x = x(x2+ 9)-1/2or x/(x2+ 9)1/2