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微分(4)
選択肢
(1) | \(\frac{x}{\sqrt{x^{2} + 1}}\) | (2) | \(\frac{2 x^{2} + 1}{\sqrt{x^{2} + 1}}\) | (3) | \(- \left(3 \sin^{2}{\left(x \right)} - 2\right) \sin{\left(x \right)}\) |
(4) | \(2 \left(x e^{x^{2}} + e^{2 x}\right)\) | (5) | \(- \frac{1}{2 \sqrt{x - 1} \sqrt{x + 1} \left(\sqrt{x - 1} + \sqrt{x + 1}\right)}\) | (6) | \(x \left(3 \tan^{2}{\left(3 x \right)} + 3\right) + \tan{\left(3 x \right)}\) |
(7) | \(\frac{3}{\cos^{2}{\left(3 x \right)}}\) | (8) | \(\frac{9 x - 22}{\left(x + 2\right)^{3}}\) |