V = a*b*c 6 ¹/₄ дм = 6,25дм; 2 ²/₅ дм = 2,4дм; 1 ⁴/₅ дм = 1,8дм
V = 6,25 * 2,4 * 1,8 = 27 дм³
<em>
(6,25* 2,4 = 15дм² ; 15дм² * 1,8дм = 27дм³)</em>
X=9*(-1)
x=-9
x=-1
x:(-2973)=0
x=0
x:1=-230
x=-230
4312 :8
-40 539
-----
31
-24
-------
72
-72
-----
0
13,84+14,23+12,66+15,03/4=13,94
<span>Log3(2x-4)<2
</span>Log3(2x-4)<<span>Log3 3^2
</span>2x-4<2
2x<6
x<3