-2.7,0.11,9.87,0.99,√15 ̄这些数是属于正整数,负整数,正分数,负分数,正有理数,还是无理数?
问题描述:
-2.7,0.11,9.87,0.99,√15 ̄这些数是属于正整数,负整数,正分数,负分数,正有理数,还是无理数?
答
-2.7,0.11,9.87,0.99是有理数,√15是无理数
-2.7,0.11,9.87,0.99,√15 ̄这些数是属于正整数,负整数,正分数,负分数,正有理数,还是无理数?
-2.7,0.11,9.87,0.99是有理数,√15是无理数