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1D2010
@1D2010
January 2021
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Svp aider moi de résoudre cette inéquations
C.a.d déterminer delta puis le tableau de signes
svp c trop urgent!
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trudelmichel
Verified answer
Bonjour,
domaine de définition
7x-14<>0
7x<>14
x<>2
x -infini -0.5 2 4 + infini
(2x+1) - 0 + + +
(-x+4) + + + + 0 -
(7x-14) - - - + + +
(2x+1)(-x+4)/(7x-14) + 0 - + 0 -
-0.5<=x<2 (2x+1)(-x+4)/(7x-14) <=0
4<=x (2x+1)(-x+4)/(7x-14) <=0
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Salut tout le monde! !C vraiment trop urgent! !!Merci d'avance.
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Verified answer
Bonjour,domaine de définition
7x-14<>0
7x<>14
x<>2
x -infini -0.5 2 4 + infini
(2x+1) - 0 + + +
(-x+4) + + + + 0 -
(7x-14) - - - + + +
(2x+1)(-x+4)/(7x-14) + 0 - + 0 -
-0.5<=x<2 (2x+1)(-x+4)/(7x-14) <=0
4<=x (2x+1)(-x+4)/(7x-14) <=0