1.D 不超过的最大整数所以小于-1但可以取到-2
2.9 5小于10 5+6=11 11大于10 11-2=9
1、函数f(x)=[x]表示不超过的最大整数,若f(a)=-2,则a的取值集合为( )
1、函数f(x)=[x]表示不超过的最大整数,若f(a)=-2,则a的取值集合为( )
A、{-2} B、{-1.5} C、[-2,-1] D、[-2,-1)
2、设{f(x)={x-2,(x≥10) ,则f(5)的值为( )
f[f(x+6)],(x<10)
A、{-2} B、{-1.5} C、[-2,-1] D、[-2,-1)
2、设{f(x)={x-2,(x≥10) ,则f(5)的值为( )
f[f(x+6)],(x<10)
数学人气:738 ℃时间:2020-06-20 15:06:45
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