1) 1 922 800 : 38 = 50 600
2) 215 : 215 = 1
3) 1 + 739 = 400
4) 400 * 0 = 0
5) 873 200 : 8732 = 100
6) 50 600 * 100 = 5 060 000
7) 5 060 000 - 34 816 = 5 025 184
8) 5 025 184 * 0 = 0
9) 0 * 1 =0
<span> 2cos (x-П/4) + √3 =0</span>
-0,4(x-0.785) 1.7 = 0
-0,4x -(-0.314) = 0
-0.4x +0.314 = 0
-0.4x = -0.314
x= -0.785
<span>Х:8,4=2,3
Х=2,3*8,4
Х=19,32
</span>
Х²+х=5х+1
х²+х-5х-1=0
х²-4х-1=0
Д=16+4=20=(2√5)²
х₁=(4+2√5)/2=2+√5
х₂=(4-2√5)/2=2-√5
600 кг-6ц.
600кг-600000гр.