integral from-2 to 1 of sqrt(1+25)

解答

\int_{- 2}^{1} 1 + 25 d x

326

十进制

15.29705 \dots

求解步骤

\int_{- 2}^{1} 1 + 25 d x

常数积分:

\int a d x = a x

= [1 + 25 x]_{- 2}^{1}

化简

= [26 x]_{- 2}^{1}

带入上下限计算后得:

326

= 326

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