2) х<9
3) 2x-5<x+3
x<8
5)
[tex]log_{1/2} x < log_{1/2}8\\\\x > 8[/tex]
(бо 1/2 в степені -3 = 8)
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2) х<9
3) 2x-5<x+3
x<8
5)
[tex]log_{1/2} x < log_{1/2}8\\\\x > 8[/tex]
(бо 1/2 в степені -3 = 8)