Toán Lớp 7: 1/3-|x-1/5|=1/2
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Toán Lớp 7: 1/3-|x-1/5|=1/2
Giải giúp mình
Comments ( 2 )
<=>|x-1/5|=1/3-1/2
<=>|x-1/5|=(-1)/6
Vì |x-1/5|>=0, mà (-1)/6<0
->x in ∅
Vậy : x in ∅