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Beliebt Rechnen >

limit as x approaches-9 of (9-|x|)/(9+x)

Lösung

x \to - 9 lim (\frac{9 - ∣ x ∣}{9 + x})

Lösung

1

Schritte zur Lösung

x \to - 9 lim (\frac{9 - ∣ x ∣}{9 + x})

x

ist negativ wenn

x \to - 9

. Deshalb

∣ x ∣ = - x

= x \to - 9 lim (\frac{9 - ( - x )}{9 + x})

Vereinfache

= x \to - 9 lim (1)

x \to a lim c = c

= 1

Graph

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