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一、单项选择题 每小题1分,共40分(在每小题的备选答案中选出一个正确答案,并将其号码写在题干后面的○内) 1、设A={1,2,3,4},B={3,4,5,6},则A-B=…………………………………………○ ①{1,2,5,6} ②{1,2} ③{5,6} ④Φ 2、函数y=(x-1)/(lnX)+(16-(X~2))~(1/2)的定义域为……○ ①(0,1) ②(0,1)U(1,4) ③(0,4) ④(0,1)U(1,4) 3、函数y=x~2·(1+cos~3x)的图象关于………○ ①x轴对称 ②y轴对称 ③原点对称 ④直线y=x对称 4、函数y=(x-1)/(x+1)的反函数为……………………○ ①y=(x-1)/(x+1) ②y=(x+1)/(x-1) ③y=(2(x+1))/(x-1) ④y=(2(x-1))/(x+1) 5、设f(x)=|x-2|/(x+1),则f(1)=……………○ ①-(1/2) ②-1 ③1/2 ④1
First, the individual multiple-choice questions 1 point for each small question, a total of 40 points (in each small question of the answer to choose a correct answer, and the number written in the back of the title ○) 1, set A = {1 , 2,3,4}, B = {3,4,5,6}, then AB = .................. ① ① {1,2,5,6} ② {1,2} ③ {5,6} ④Φ 2 The domain of the function y = (x-1) / (lnX) + (16- (X ~ 2)) ~ ① (0,1) ② (0,1) U (1,4) ③ (0,4) ④ (0,1) U (1,4) 3. Function y = x ~ 2 · (1 + cos ~ 3x) About ......... ○ ① Axisymmetric Axis ◆ Symmetrical Axis y ③ Symmetry of Origin ④ Straight Line y = x Symmetry 4. The inverse of the function y = (x-1) / (x + 1) is ............... ......... ○ ① y = (x-1) / (x + 1) ②y = (x + 1) / (x-1) ③y = (2 (x + 1)) / f (1) = ............... ○ ① - (1/2) (x-1)) / (x + 1) ) ②-1 ③ 1/2 ④1