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inequalities
2011-11-29 5:36 am
回答 (1)
2011-11-29 5:48 am
✔ 最佳答案
(a) 49 - x^2 ≥ 0x^2 - 49 ≤ 0
(x + 7)(x - 7) ≤ 0
-7 ≤ x ≤ 7
(b) For x ≥ 4,
the possible values of x include: 4,5,6,7.
參考: Knowledge is power.
收錄日期: 2021-04-20 11:55:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111128000051KK00866