求函数的定义域:f(x)=√(x2+x-6).
要使函数有意义,必有 x2+x-6≥0. 解得x≥2或x≤-3, 即f(x)的定义域为(-∞,-3]∪[2,+∞).
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/55568.html
上一篇:适合于肠外营养的情况是
下一篇:Passage 2 Questions 6 to 10 are based on the following passage. Hollywood produces dozens, if not hundreds, of movies annually. Although a significant number of them are meant solely for entertainment and possess l
Passage 2 Questions 6 to 10 are based on the following passage. Hollywood produces dozens, if not hundreds, of movies annually. Although a significant number of them are meant solely for entertainment and possess l