下列各数中,哪些是有理数?哪些是无理数?-5,π/4,0.878878887...(7后面依次多1个8),11/19,0,3.1415926,3.1415926...-5,π/4,0.878878887...(7后面依次多1个8),11/19,3.1415926,3.1415926...
问题描述:
下列各数中,哪些是有理数?哪些是无理数?
-5,π/4,0.878878887...(7后面依次多1个8),11/19,0,3.1415926,3.1415926...
-5,π/4,0.878878887...(7后面依次多1个8),11/19,3.1415926,3.1415926...
答
有理数:- 5,11/19,0,3.1415926
无理数:π/4,0.878878887...(7后面依次多1个8),3.1415926...