Odpowiedzi

2010-03-10T17:09:52+01:00
B)-8y-4z+x-y-2z+1 dla x=-0,5, y=-1, z=2

-8*(-1)-4*2-0,5-2*2+1=8-8-0,5-4+1=-3,5

c)9y-(7y+x)+(6x-7y) dla x=-2, y=3

9*3-(7*3-2)+(6*(-2)-7*3)=27-21+2-12-21=-25
2010-03-10T17:11:44+01:00
B)-8x(-1)-4x2-0,5-1-2x2+1=-4,5
c)9x3-(7x3-2)+(6x(-2)-7x3)=-25