问题
选择题
若f(x)的定义域为[0,1],且0<a<
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答案
∵f(x)的定义域为[0,1],∴y=f(x+a)+f(x-a)定义域是满足不等式:0≤x+a≤1 0≤x-a≤1
∴
∵0<a<-a≤x≤1-a a≤x≤1+a
∴1 2
<1-a<11 2
∴不等式的解集是:a≤x≤1-a∴y=f(x+a)+f(x-a)定义域是[a,1-a]
故选C
若f(x)的定义域为[0,1],且0<a<
|
∵f(x)的定义域为[0,1],∴y=f(x+a)+f(x-a)定义域是满足不等式:0≤x+a≤1 0≤x-a≤1
∴
∵0<a<-a≤x≤1-a a≤x≤1+a
∴1 2
<1-a<11 2
∴不等式的解集是:a≤x≤1-a∴y=f(x+a)+f(x-a)定义域是[a,1-a]
故选C
King's College Summer School is an annual( 每年的) training program for high school students at all levels who want to improve their English. Courses are given by the teachers of King' s College and other colleges in New York. Trips to museums and culture centers are also organized. This year's summer school will be from July 25 to August 15. More information is as follows:
小题1:You can most probably read the text in ________.
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