02 2 3 4 4 3 0      2 HO C 2 3 2 (LO I .(2 3 3;2A  H CᯈC...

1.0

2

2 3 4 4 3 0      2 ho c 2 3 2 (lo i .(2 3 3;2A  

h cᯈc ư ng

c

ch

2

2

c

2

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T m giᯈ tr nh nh t cᯈ

i u th c:

P

2

2

2

2

2

c

2

  c c  P cTa c闐 0 c2;

2

2

2

2 2 2   c  Ta c闐:

3

8

3

4 4 2     (5 . ng th c ra hi 2 33 6 3 6 3 6