(4.+ ∞)\(- ∞.2] = ? veto 5 sao Question (4.+ ∞)\(- ∞.2] = ? veto 5 sao in progress 0 Môn Toán Dulcie 4 years 2020-10-30T00:44:05+00:00 2020-10-30T00:44:05+00:00 2 Answers 83 views 0
Answers ( )
Giải thích các bước giải:
$(4,+\infty)\setminus (-\infty,2]=\varnothing$
`(4; +∞) \\ (-∞; 2] = ∅`