Question

6道数学小题(速求)1.若a大于0,b小于0,|a|大于|b|,试把a,-a,b,-b,用大于号连起来2.已知x大于0,

Answer 1

1.a>-b>b>-a 2.-y>x>-x>y 3.-5 4.-20 5.3 6.x=-3 y=2或-2 所以x+y=-1或-5