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任意角的三角函数诊断检测一、选择题1.下列命题中正确的是( )(A)终边相同的角一定相等.(B)第一象限的角都是锐角.(C)第二象限的角比第一象限的角大.(D)小于90°的角不一定是锐角.2.将分钟拨快10分钟,则分针转过的弧度数是
Trigonometric function detection of arbitrary angles 1. Multiple choice questions 1. The correct ones of the following propositions are () (A) The same angles on the terminal side must be equal. (B) The angles in the first quadrant are all acute angles. (C) The second quadrant The angle of the corner is larger than that of the first quadrant. (D) The angle less than 90° is not necessarily an acute angle. 2. When the minute is dialed for 10 minutes, the number of arcs the minute hand rotates is