Toán Lớp 7: 1-|x-1/2-1/3|=3/4 giúp nhé ae
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Toán Lớp 7: 1-|x-1/2-1/3|=3/4 giúp nhé ae
Comments ( 2 )
=>1-|x-3/6-2/6|=3/4
=>1-|x-5/6|=3/4
=>|x-5/6|=1-3/4
=>|x-5/6|=4/4-3/4
=>|x-5/6|=1/4
=>[(x-5/6=1/4),(x-5/6=-1/4):}
=>[(x=1/4+5/6),(x=-1/4+5/6):}
=>[(x=3/12+10/12),(x=-3/12+10/12):}
=>[(x=13/12),(x=7/12):}
Vậy x\in{13/12;7/12}