ПРИ каких значениях х выражение 10х - 3 принимает положительные значения, меньше 1?
Автор:
leeblackwellесли по отдельности:
1)10x-3<1
10x<4 |:2
5x<2
x< 0.4
Ответ: (, 0,4)
2) 10х-3>0
10x>3
x>0,3
Ответ:( , 0,3)
Или:
0<10x-3<1 | +3
3<10x<4 | :10
0,3<x<0,4
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