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不定積分(4)
選択肢
(1) | \(- \frac{3 x^{2}}{\left(x^{2} + 1\right) \sqrt{\left(x^{2} + 1\right)^{3}}} + \frac{1}{\sqrt{\left(x^{2} + 1\right)^{3}}} + C\) | (2) | \(\frac{3 a^{3 x} \log{\left(a \right)}}{a^{x} + 1} - \frac{a^{x} \left(a^{3 x} + 1\right) \log{\left(a \right)}}{\left(a^{x} + 1\right)^{2}} + C\) |
(3) | \(\frac{a^{2x}}{2 \log(a)}-\frac{a^{x}}{\log(a)}+x + C\) | (4) | \(- \frac{1}{\sqrt{x^{2} + 1}} + C\) |
(5) | \(\tan(x) - \log(x) + C\) | (6) | \(x - \frac{\log{\left(a^{x} + 1 \right)}}{\log{\left(a \right)}} + C\) |
(7) | \(\frac{x \tan^{2}{\left(x \right)} + x - 1}{x} + C\) | (8) | \(\frac{x \sin{\left(2 x \right)}}{2} + \frac{\cos{\left(2 x \right)}}{4} + C\) |
(9) | \(x \log{\left(x + 1 \right)} - x + \log{\left(x + 1 \right)} + C\) | (10) | \(\frac{\left(x - 1\right) \sqrt{2 x + 1}}{3} + C\) |