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

Lösung

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

- \infty

Schritte zur Lösung

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

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

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

x \to a lim [f (x) \cdot g (x)] = x \to a lim f (x) \cdot x \to a lim g (x)

mit Einschränkung des unbestimmten Ausdrucks

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

x \to 3 - lim (x + 3) = 6

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

= 6 (- \infty)

Wende die Unendlichkeitseigenschaft an:

c \cdot (- \infty) = - \infty

= - \infty

x \to 2 lim (x^{5} - 2 x^{4} + x - 7)

x \to - 1 + lim (x^{2} - 1)

x \to - 2 lim (3 x^{2} + 2 x - 1)

x \to 1 - lim (2 - x - \frac{5}{3})

x \to 0 - lim (x + \frac{4}{x ^{2}})