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人気のある微分積分 >

integral from 0.75 to 0.9 of 3x^2

解

\int_{0.75}^{0.9} 3 x^{2} d x

解

0.307125

解答ステップ

\int_{0.75}^{0.9} 3 x^{2} d x

定数を除く:

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

= 3 \cdot \int_{0.75}^{0.9} x^{2} d x

べき乗則を適用する

= 3 [\frac{x ^{3}}{3}]_{0.75}^{0.9}

簡素化

= 3 [0.33333 \dots x^{3}]_{0.75}^{0.9}

限度を計算する:

0.102375

= 3 \cdot 0.102375

簡素化

= 0.307125

グラフ

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