ребят решите пожалуйста)[tex]log _{0.2} x-log _{5} (x-2) \ \textless \ log _{0.2} 3[/tex]. Created by mkineshma. algebra-ru

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mkineshma @mkineshma

July 2022 2 9 Report

ребят решите пожалуйста)[tex]log _{0.2} x-log _{5} (x-2) \ \textless \ log _{0.2} 3[/tex]

Юленька194

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Логарифмическое неравенство

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ЕкарныйБабай Log0.2 x - log5 (x-2) < log0.2 3
одз x>0
x-2>0 x>2
1/5=0.2
log0.2 x + log0.2 (x-2) < log0.2 3
log0.2 x(x-2) < log0.2 3
(0.2-1)(x(x-2)-3)<0
x²-2x-3>0
D=4+12=16
x12=(2+-4)/2=3 -1
(x+1)(x-3)>0
+++++++++ (-1) ---------- (3) +++++++++
--------------------------- (2)//////////////////////////
ответ x>3 x=(3 +00)

1 votes Thanks 0

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