Mệnh đề phủ định của mệnh đề:
2
" Î + + > x R x x , 5 0
là
A.
2
...
Mathematics, 20.09.2021 09:10, achewitt4147
Mệnh đề phủ định của mệnh đề:
2
" Î + + > x R x x , 5 0
là
A.
2
$ Î + + £ x R x x , 5 0 . B.
2
" Î + + £ x R x x , 5 0
C.
2
$ Î + + < x R x x , 5 0 . D.
2
" Î + + < x R x x , 5 0.
Answers: 3
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