integral from 1 to infinity of f(x)

解答

\int_{1}^{\infty} f (x) d x

发散

求解步骤

\int_{1}^{\infty} f x d x

计算不定积分:

\int f x d x = \frac{f x ^{2}}{2} + C

带入上下限计算后得:

\int_{1}^{\infty} f x d x =

发散

= 发散

(19 x y^{2} - 15 y) + (19 x^{2} y - 15 x) y^{^{'}} = 0

\int \frac{sec ( x ) + cos ( x )}{7 cos ( x )} d x

\frac{d}{d x} (x^{4} \frac{1}{8} + \frac{1}{4 x ^{2}})

\frac{d}{d x} ((6 x + 1)^{2})

y^{^{''}} - 25 y = 0