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人気のある微分積分 >

integral from 0 to 1/5 of 4arcsin(5y)

解

\int_{0}^{\frac{1}{5}} 4 arcsin (5 y) d y

解

4 (\frac{π}{10} - \frac{1}{5})

+1

十進法表記

0.45663 \dots

解答ステップ

\int_{0}^{\frac{1}{5}} 4 arcsin (5 y) d y

定数を除く:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 4 \cdot \int_{0}^{\frac{1}{5}} arcsin (5 y) d y

部分積分を適用する

= 4 [y arcsin (5 y) - \int \frac{5 y}{1 - 25 y ^{2}} d y]_{0}^{\frac{1}{5}}

\int \frac{5 y}{1 - 25 y ^{2}} d y = - \frac{1}{5} 1 - 25 y^{2}

= 4 [y arcsin (5 y) - (- \frac{1}{5} 1 - 25 y^{2})]_{0}^{\frac{1}{5}}

簡素化

4 [y arcsin (5 y) - (- \frac{1}{5} 1 - 25 y^{2})]_{0}^{\frac{1}{5}} : 4 [\frac{1}{5} (5 y arcsin (5 y) + 1 - 25 y^{2})]_{0}^{\frac{1}{5}}

= 4 [\frac{1}{5} (5 y arcsin (5 y) + 1 - 25 y^{2})]_{0}^{\frac{1}{5}}

限度を計算する:

\frac{π}{10} - \frac{1}{5}

= 4 (\frac{π}{10} - \frac{1}{5})

グラフ

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