Which notation is equivalent to the inequality -3 < x ≤ 7? [-3,7] (-3,7] [-3,7) (-3,7)?
回答 (2)
2015-05-07 1:48 am
(-3,7]
2015-05-07 1:20 am
The expression indicates the interval between
-3 and 7, not including -3 but including 7.
The "not including" end gets a parenthesis ( ,
the "including" end gets a bracket ] . So
the answer is ( -3, 7 ]
-3 and 7, not including -3 but including 7.
The "not including" end gets a parenthesis ( ,
the "including" end gets a bracket ] . So
the answer is ( -3, 7 ]
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