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Question Number 78449 by mathocean1 last updated on 17/Jan/20
find the domain of definition of f(x)=((−x)/(∣x∣−x))
findthedomainofdefinitionoff(x)=−x∣x∣−x
Commented by Rio Michael last updated on 18/Jan/20
f(x) = (x/(x−∣x∣)) so x < 0 so that x−∣x∣ should be defined. for example x =− 2, x−∣x∣ = ∣−2∣−(−2) = 2 + 4 = 6 so x: x < 0
f(x)=xx−∣x∣sox<0sothatx−∣x∣shouldbedefined.forexamplex=−2,x−∣x∣=∣−2∣−(−2)=2+4=6sox:x<0
Answered by key of knowledge last updated on 17/Jan/20
x<0
x<0

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