limit as x approaches+3 of 1/((x-3))

解答

x \to + 3 lim (\frac{1}{( x - 3 )})

发散

求解步骤

x \to 3 lim (\frac{1}{x - 3})

若

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

则极限不存在

x \to 3 + lim (\frac{1}{x - 3}) = \infty

x \to 3 - lim (\frac{1}{x - 3}) = - \infty

= 发散

d er i v a t i v e y = 2 (12 x - 42)

l a pl a ce t r an s f or m 2 t - \frac{8}{3}

z \to 0 lim (\frac{I m ( z )}{z})

t a y l or \frac{2}{x}, 4

a re a y = 4 x^{2}, y = 6 x^{2}, 5 x + y = 6 \geq 0