f(x)=cosx/(根号1-sin方x)+(根号1-cos方x)/sinx
=cosx/|cosx|+|sinx|/sinx
则有sinx≠0且cosx≠0
sinx,cosx均为正时,f(x)=2
sinx,cosx均为负时,f(x)=-2
sinx,cosx一正一负时,f(x)=0
所以f(x)值域为{0,2,-2}
函数f(x)=cos/(根号1-sin方x)+(根号1-cos方x)/sin的值域为?
函数f(x)=cos/(根号1-sin方x)+(根号1-cos方x)/sin的值域为?
数学人气:942 ℃时间:2019-10-24 00:49:34
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