a)Given that a>(3/4) represent the range of values of 4a-3 by an inequality.
b)Given that a>b>(3/4) prove that
圖片參考：http://www4d.wolframalpha.com/Calculate/MSP/MSP226319eg5201b56c9903000021500fg266f7090a?MSPStoreType=image/gif&s=43&w=113&h=37
by using the result of (a).
inequalities 一問( in english)
2011-03-15 1:14 am
回答 (2)
2011-03-15 5:18 am
✔ 最佳答案
(a) a > 3/4 => 4a > 3 => 4a – 3 > 0(b) a > b > 3/4 => Both 4a – 3 and 4b – 3 are positivea > b => 4a > 4b => 4a – 3 > 4b – 3=>1/(4b – 3) > 1/(4a – 3)
2011-03-15 1:42 am
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