Question

5.1,-3.14159,0.222...,50,1又3/4,1.696996999...,-2.105,-3π,0,-

Answer 1

分数：1又3/4;

正数：5.1 ,0222.,50,1又3/4 ,1.696996999...,

负数：-3.14159 ,-2.105 ,-3π,-8848

整数：50 ,0,-8848

非负数：5.1 ,0222.,50,1又3/4 ,1.696996999...,0

非正整数：5.1 ,-3.14159 ,0.222...,1又3/4 ,1.696996999...,-2.105 ,-3π ,-8848

非负整数：5.1 ,-3.14159 ,0.222...,50 ,1又3/4 ,1.696996999...,-2.105 ,

-3π ,0

有理数：5.1 ,-3.14159 ,0.222...,50 ,1又3/4 ,-2.105 ,0 ,-8848

无理数：1.696996999...,-3π