В первый 4120
Во второй 4120-360=3760
В третий 4120+3760=7880
Всего 4120+3760+7880=15760
1,21(32) = 1 + (2132 - 21) / 9900 = 1целая 2111/9900
- 2,3(9) = -2 - (39 - 3)/90 = -2 - 36/90 = -2целых 4/10 = - 2целых 2/5
0,(6) = 6/9 = 2/3
1)(b+a) (b-a)²=(b+a)(b²-2ba+a²)=b³-2b²a+ba²+ab²-2ba²+a³=b³-b²a-a²b+a³
2)<span>(x+y)² (y-x)=(x</span>²+2xy+y²)(y-x)=x²y+2xy²+y³-x³-2x²y-xy²=y³-x²y+xy²-x³
360 | 360 | 16 | 16 | 90 | 0.009 | 2.5 | 10 | 0
3600 | 3600 | 16 | 16 | 90 | 0.09 | 25 | 10 | 0