Răspunsuri

2014-09-07T15:38:01+03:00
a)4(1-x)\geq2x+3\\&#10;4-4x\geq2x+3\\&#10;-4x-2x\geq3-4\\&#10;-6x\geq-1|\cdot (-1)\\&#10;6x\leq1\\&#10;x\leq \frac{1}{6} \\&#10;x\in(-\infty;\frac{1}{6}]\\&#10;b)-2x+7>8x-(x+2)\\&#10;-2x+7>8x-x-2\\&#10;-2x-8x+x>-2-7\\&#10;-9x>-9|\cdot (-1)\\&#10;9x<9\\&#10;x<1\\&#10;x\in(-\infty;1)
ce inseamna geq
\geq inseamna mai mic sau egal in scrierea Latex
dar cdot , leq frac inseamna fractie dar infty. ma scuzati ca dau asa multe intrebari
http://web.ift.uib.no/Fysisk/Teori/KURS/WRK/TeX/symALL.html Simbolurile matematice in Latex.
multumesc foarte mult