<span>(x + 4y) (4y - x) = 16</span>
-
= -
+ 16
y=1782:3+8= 594+8= 602
y=1101:3+8= 367+8= 375
y= 1/3*2/3+8= 2/9 +8= 74/9
y= 1/3*3/10+8= 1/10+ 8= 8,1
5.sin35.cos35 = 5.1/2.2.sin35.cos35 = 5/2.sin70
coskv 10 - sinkv 10 = cos20
Dannoe vyraženie poetomu = 5/2. sin70/cos20= (2,5.sin70)/cos20
<span> -15a-b-2+14a=-a-b-2</span>