Maths problems?
Consider the universal set R, define the interval A = [-7,1], interval B = (-1,4), and C be the negative real numbers. Complete the following exercises in interval notation.
回答 (1)
4. (-∞, -7) U [-1, ∞)
5. (-∞, -7) U [0, 4)
收錄日期: 2021-05-03 06:23:45
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