(\partial)/(\partial z)(tan(5+2x^2y^4z^2))

解

\frac{\partial}{\partial z} (tan (5 + 2 x^{2} y^{4} z^{2}))

sec^{2} (5 + 2 x^{2} y^{4} z^{2}) \cdot 4 x^{2} y^{4} z

解答ステップ

\frac{\partial}{\partial z} (tan (5 + 2 x^{2} y^{4} z^{2}))

x, y

を定数として扱う

連鎖法則を適用:

sec^{2} (5 + 2 x^{2} y^{4} z^{2}) \frac{\partial}{\partial z} (5 + 2 x^{2} y^{4} z^{2})

= sec^{2} (5 + 2 x^{2} y^{4} z^{2}) \frac{\partial}{\partial z} (5 + 2 x^{2} y^{4} z^{2})

\frac{\partial}{\partial z} (5 + 2 x^{2} y^{4} z^{2}) = 4 x^{2} y^{4} z

= sec^{2} (5 + 2 x^{2} y^{4} z^{2}) \cdot 4 x^{2} y^{4} z