1 4 X2 X 1 X2 2 X2 X X 6 0 21 0X X 0,5 1 5 ...
2.1 4 x
2
x 1 x2
2 x2
x x 6 0
2
1 0
x
x
0,51
5
2
0
*
ĐK:
0
2
x
BPT
2
2
2
x
x
x
x
x
x
4
1 1
2
2
0
2
2
x
x
x
x
4
2
0
1 1
2
4
1
2
1
0
2
0
2
2
2
*
dk
1
KL:Tx
2;