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1引题(2017年浙江五校联考17)设实数x、y>0且满足x+y=k,则使不等式(x+1/x)(y+1/y)≥(k/2+2/k)~2恒成立的k的最大值为.2考情我校把此套试卷作为一次仿真模拟让学生演练,根据考后结果数据分析17题的得分率极低,作为考试的压轴填空题确实起到了压轴的效果.但是引起笔者兴趣的并非是极低的学生得分率,而是出
1 Question (2017 Zhejiang Five School Entrance Examination 17) Let the inequality (x + 1 / x) (y + 1 / y) ≥ (k / 2) be true if x, y> 0 and satisfy x + y = + 2 / k) ~ 2 The maximum value of k that is established persistently is .2 The test Our school uses this set of papers as a simulation for students to practice. According to the test result data analysis, the score of 17 questions is extremely low, Finale fill-blank title did indeed finale effect.But the author is not interested in the very low score of students, but out