関連ワード:  differentiation of tanh 1x    differentiation of tanh^-1    derivative of tanh 1    differentiation of cosh 1x    differentiation of cosh^-1    derivative of tanh 1 sinx    derivative of tanh 1 2x    derivative of tanh(1+e^2x)    derivative of tanh 1 x 2    derivative of tanh 1 3x