resolva a inequação de 1 grau em N (2x+1)/3x-1>-1.... Pergunta de ideia decaliju

October 2020 1 63 Report

resolva a inequação de 1 grau em N
(2x+1)/3x-1>-1

Lista de comentários

emicosonia $\frac{2x+1}{3x-1}>-1\\\\\frac{2x+1}{3x-1/1}+\frac{1}{1/(3x-1)}>0\\\\\frac{2x+1+3x-1}{3x-1}>0\\\\\frac{5x}{3x-1}>0$

Numerador:

$5x>0\\x>0$

Denominador:

$3x-1>0\\3x>1\\x>\frac{1}{3}$

Por fim,

__-______(0)__+__________+____
___-_________-_____(1/3)__+_____
___+____(0)__-_____(1/3)___+________

S = {x E R | x < 0 v x > 1/3, x # 1/3}

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emicosonia ---------0--------------

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