Odpowiedzi

2010-01-27T23:33:35+01:00
5v₁+4v₂=4 /*(-5)
7v₁+5v₂=6 /*4

-25v₁-20v₂=-20
28v₁+20v₂=24

3v₁=4 /:3
v₁=4/3

5v₁+4v₂=4
5*4/3+4v₂=4
20/3+4v₂=4
4v₂=4-20/3
4v₂=4-6i2/3
4v₂=-2i2/3 /*1/4
v₂=-2/3

v₁=4/3
v₂=-2/3