第27届希望杯高二数学第二试复赛题中有一道有趣且有些难度的最值问题,有趣的是因为它具有几何背景,而其难点则在于它是一道三角函数试题,涉及公式多,要求我们能灵活运用公式进行有效的变形,再者它涉及的变量多,是一道三元函数问题,要求我们能迅速准确地消元求解.下面笔者与大家分享这道题的简洁解及笔者的研究思考. There is an interesting and somewhat difficult problem of the most value in the 27th Hope Cup sophomore mathematics rematch. It is interesting because it has a geometric background, and its difficulty lies in that it is a trigonometric function test that involves many formulas and requirements We can flexibly use the formula for effective deformation, and then it involves more variables, is a ternary function problem that requires us to quickly and accurately eliminate the solution. Now I share with you simple solution to this problem and the author’s study Thinking.