已知偶函数f(X)在区间【0,+∝)单调增加,则满足f(2x-1)扫码下载作业帮拍照答疑一拍即得
问题描述:
已知偶函数f(X)在区间【0,+∝)单调增加,则满足f(2x-1) 扫码下载作业帮
拍照答疑一拍即得
答
2x-1≥0
x≥1/2
2x-1x1/2≤x
答
case 1:for 2x-1 >=0=> x >=1/2f(2x-1) 2x-1 =1/2 and x x > 1/3solution for case 2x 1/3ie 1/3