a = 0 x = 1 x**2 = 2x x**3 = 3x2 1/x = -1/x**2 sqrt(X) = 1/2sqrt(x) cos(x) = -sin(x) sin (x) = cos(x) (u+v)' = u' + v' (ku)' = ku' (u*v)' = u'v * uv' (1/u)' = -u/u**2 (u/v)' = u'v-uv'/v**2 (u**n)'= nu' u**n-1 (sqrt(u))'= u'/2sqrt(u) (cos u)' = -u' sin(u) (sin u)' = u' cos(u)