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標題:

IMO---1960(inequality)

發問:

Please refer to the following question: 圖片參考:http://hk.geocities.com/stevieg_1023/IMO1960.gif

最佳解答:

For the function to be well defined, we must have x>-1/2 and x≠0. Suppose x satisfies these conditions, then 4x^2 / (1-√(1+2x))^2 -1/2, 2x+9 > 0. and 11x+9 > 0, so the above inequality is equivalent to (2x+9)^2 (1+2x)

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其他解答:E2A5F59BAA12C031

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