Sprendimas: YUIsTH - 1
A* B =
x1* x2+ y1* y2
x1* x2+ y1* y2
|
A* B = x1* x2+ y1* y2
= 
A =
= 
| ( x1* x2+ y1* y2) |
| / B |
A =
+
= 
| x1* x2 |
| / B |
| y1* y2 |
| / B |
|
|
| ( x1* x2+ y1* y2) |
| / B |
| x1* x2 |
| / B |
| y1* y2 |
| / B |