логарифмическое неравенство log 1+x (2-x) < 1. Created by JekaterinaSh. algebra-ru

логарифмическое неравенство log 1+x (2-x)

September 2021 1 19 Report

логарифмическое неравенство log 1+x (2-x) < 1

karakat0534 2-x+2x-x^2 <0
x^2+x+2 <0
D=1+4*1*2=9=3^2
x1=(-1-3)/2=-2
x2=1
x <1
x <-2

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