limit as x approaches 2+of 5/(x-2)

解答

x \to 2 + lim (\frac{5}{x - 2})

\infty

求解步骤

x \to 2 + lim (\frac{5}{x - 2})

x

从右侧趋近于

2, x > 2 \Rightarrow x - 2 > 0

分母从右侧趋近于 0，为正值

= \infty

x \to \infty lim (- 2)

\int y cos (x y) - 3 y^{2} + e^{x} d x

a re a x = - 2, x = 3, y = x^{2} - 3, y = 2 x

t a y l or e^{5 x + 5}, 0

\frac{d y}{d x} = (1 - 2 x) y^{2}