February 2019 0 29 Report
Potrzebne na zaraz! :)

Równanie  \sqrt{ x^{2} -4} = \sqrt{x-2} * \sqrt{x+2} jest spełnione dla:

x∈R
x∈<2;∞)
x∈<-2;∞)
x∈<-2;2>

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