Solutions We Have, Using the Am{gm Inequality Several Times, That
نویسنده
چکیده
No problem is ever permanently closed. The editor is always pleased to consider for publication new solutions or new insights on past problems. 1 ; xy. We show that S 3 p 3 2. If one of x, y or z is 0, say, x = 0, then S = y + z < 2 < 3 p 3 2. Now, suppose that xyz 6 = 0, so that x, y, z 2 (0 1).
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