関連ワード:  derivative of ln x^1/2    derivative of ln x 1 2    derivative of ln x 2 1 3    derivative of ln((x-1)/(4x^2-3))    second derivative of ln x 2 1    derivative of ln sqrt x 2 1    derivative of y=ln(x^2-1)    derivative of ln x 2 2x 1    derivative of 1.4 ln 1 x 2    derivative of ln x 2 4 1 2