1.3200/(1600/100+1600/160)=3200/26=1600/13
2.2002+x=2.5(2002-x) x=1.5*1001=1501.5
3.1+1=2
4.1/5x+24+1.5(1/5x+24)+1/5x=x x=200
6.23+11+13+15+17+19+21=119
7.最大值:
3*3*4=36
最小值:
1*1*8=8
8.197分钟
9.3*3/3-3=0
10.1-1/7-1/3-1/2=1/42
1ren
1.3200/(1600/100+1600/160)=3200/26=1600/13
2.2002+x=2.5(2002-x) x=1.5*1001=1501.5
3.1+1=2
4.1/5x+24+1.5(1/5x+24)+1/5x=x x=200
6.23+11+13+15+17+19+21=119
7.最大值:
3*3*4=36
最小值:
1*1*8=8
8.197分钟
9.3*3/3-3=0
10.1-1/7-1/3-1/2=1/42
1ren