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1问题提出在学习苏教版《数学4》(必修)第一章“三角函数图像与性质”及第三章“三角恒等变换”后笔者学校举行了期中考试,命题人认为试卷中的第15题十分简单,应该是每位学生必会的题目,但是得分率极低。在全年级的得分统计中,该题平均分为5.6分。题目:已知函数f(x)=sin(x+π/6)+cos x。(1)求函数f(x)的最大值,并写出当f(x)取得
1 PROBLEMS We propose to hold the midterm examinations in the author’s school after learning the first chapter of “Mathematics 4” (compulsory) of Sujiao edition, “Images and Properties of Trigonometric Functions” and Chapter III “Transformation of Triangle Equality” Question 15 in the papers is very simple, should be the subject of each student will be, but the scoring rate is extremely low. In the whole year’s grade statistics, the question is divided equally into 5.6 points. Title: Known function f (x) = sin (x + π / 6) + cos x. (1) Find the maximum value of f (x) and write it when f (x) is obtained