関連ワード:  what is the derivative of tan^2 x    what is the derivative of tan 2 x    what is the derivative of tan squared x    what is the derivative of tan 2 2x    antiderivative of tan^2x)    what is the derivative of 1 tan 2 x    what is the derivative of tan inverse x 2    what is the derivative of tangent squared x    what is the differential of tan squared x    what is the differentiation of 1 tan 2 x