XLIM X 4X 9 2XXLIM X. X 1 X   2 4 4     XLIM X 3X 5 3X...

4. - TRAC NGHIEM
TRAC NGHIEM
4.

x

lim x

4x

9 2x

x

lim x.

x

1 x

  

 

2

4

4

 

x

lim x

3x

5

3x

2

 

3

3

2

 

3

2

3