関連ワード:  what is the derivative of x^6    what is the derivative of x 6    what is the derivative of x 6x    what is the derivative of x 6 2    what is the derivative of x 6 3    what is the derivative of x 6 1 2    what is the derivative of 6e x    what is the derivative of 6 x 4    what is the derivative of 6ln x    what is the derivative of 6cos x