Question

modul de 4x minus 1 modul mai mic decat 3

Answer 1

Modulul: valoarea absoluta a unui numar, definit astfel:

$|x|=\left \{ {{-x,x < 0} \atop {x,x\geq 0}} \right.$

|x|≤k

-k≤x≤k

|4x-1|<3

-3<4x-1<3 |+1

-2<4x<4 |:4

$-\frac{1}{2} < x < 1\\\\x\in (-\frac{1}{2} ,1)$

Un alt exercitiu gasesti aici: https://brainly.ro/tema/2886286

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