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受欢迎的微积分 >

limit as x approaches-2 of (x+3)/(x+2)

解答

x \to - 2 lim (\frac{x + 3}{x + 2})

解答

发散

求解步骤

x \to - 2 lim (\frac{x + 3}{x + 2})

若

x \to a^{-} lim f (x) \neq = x \to a^{+} lim f (x)

则极限不存在

x \to - 2 + lim (\frac{x + 3}{x + 2}) = \infty

x \to - 2 - lim (\frac{x + 3}{x + 2}) = - \infty

= 发散

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