(2) 252. Koʻphadning son qiymatini toping:
1) 2a + 3ab + b, bunda a=0,5, b=3
2.
2) 2a - ab + 2b2, bunda a=-1, b= -0,5;
3) x? - 2xy + y?, bunda x=y=-4,2;
4) x2 + 2xy + y2, bunda x= 1,2, y=-1,2.​

Алина06072003    3   04.12.2020 19:35    4