18,-3,0,-2.3,7/22,0.202002002...,0.666...,3*3.14,-4/1,1.7321有理数集合,无理数集合
问题描述:
18,-3,0,-2.3,7/22,0.202002002...,0.666...,3*3.14,-4/1,1.7321有理数集合,无理数集合
答
18,-3,0,-2.3,7/22,0.666...,3*3.14,-4/1,1.7321有理数集合,
0.202002002...无理数集合