integral from 2 to 7 of x

解答

\int_{2}^{7} x d x

\frac{45}{2}

十进制

22.5

求解步骤

\int_{2}^{7} x d x

使用幂法则

= [\frac{x ^{2}}{2}]_{2}^{7}

带入上下限计算后得:

\frac{45}{2}

= \frac{45}{2}

\frac{d y}{d x} = (\frac{3 y + 2}{5 x + 4})^{2}

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