340+(15*6-120:4)+52*0-15*1:(25-20)=397
1)15*6-120:4=90-30=60
2)25-20=5
3)52*0=0
4)15*1=15
5)15:5=3
6)0-3=-3
7)340+60=400
8)400-3=397
<span>(sin^2t + cos^2t) - 3sinpi + 7cospi =
= (1) -3*(0) +7*(-1) = 1-3-7 = -9</span>
4992/384=13 13 8496/236=36 36
384 -8 708 + 15
1152 5 1416 51
1152 1416
0 0
51 255
*5 +145
255 400
а>b
a>b
4500кг=4,5т
1т=100% => 4,5т=4,5*100=450%
2т300кг=2300кг=2,3 т
1т=100% => 2,3т=100%*2,3=230%