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*積分の計算 [#z3d371fc]

-13埼玉大・工[2]:$\displaystyle a_{n}=\int_{0}^{1}x(1-x)^{n}\,dx,\quad b_{n}=\int_{0}^{1}x^{2}(1-x)^{n}\,dx$ と $\displaystyle\lim_{n\to\infty}\sum_{k=1}^{n}b_k$ / 
[[kamelink:https://dl.dropboxusercontent.com/u/39826611/13%E5%85%A5%E8%A9%A6%E5%95%8F%E9%A1%8C/15.2-13%E5%9F%BC%E7%8E%89%E5%A4%A7%E3%83%BB%E5%B7%A52_cr.pdf]]
 

-13信州大・後医[5]:$\displaystyle \int_{-\sqrt{2}}^{\sqrt{2}}\quad \frac{8}{x^{4}+4}\,dx$ / 
[[kamelink:https://dl.dropboxusercontent.com/u/39826611/13%E5%85%A5%E8%A9%A6%E5%95%8F%E9%A1%8C/15.2-13%E4%BF%A1%E5%B7%9E%E5%A4%A7%E3%83%BB%E5%BE%8C%E5%8C%BB5_cr.pdf]]

-13広島大・後理(数)[2](2):$\displaystyle I_n=\int_{0}^{2\pi n}e^{-x}\cos x\,dx$, 
$\displaystyle J_{n}=\int_{0}^{2\pi n}e^{-x}\sin x\,dx$ の計算 / 
[[kamelink:https://dl.dropboxusercontent.com/u/39826611/13%E5%85%A5%E8%A9%A6%E5%95%8F%E9%A1%8C/15.2-13%E5%BA%83%E5%B3%B6%E5%A4%A7%E3%83%BB%E5%BE%8C%E7%90%86%28%E6%95%B0%292-2cr.pdf]]

-13茨城大・後理[4]:$\displaystyle I_n=\int_{1}^{e^{2}}(\log x)^{n}\,dx$ の漸化式と $I_4$ の値 / 
[[kamelink:https://dl.dropboxusercontent.com/u/39826611/13%E5%85%A5%E8%A9%A6%E5%95%8F%E9%A1%8C/15.2-13%E8%8C%A8%E5%9F%8E%E5%A4%A7%E3%83%BB%E5%BE%8C%E7%90%864_cr.pdf]]

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