1
4
3 1 4
lim 2
x
x
2
2 4 4
1 lim
3
3
x
x
3
x
x
x
1 1
lim
2
0
4
3 7
2 2
lim
x
x
5
1
1 3 2 2
lim
x x
x
6
4 16
1 1 lim
2
2
0
x
x
x
7
1 1
1 1
lim
3
x
x
8
x x
x x
2 3
lim 2
9
x
x x
x
7 16 9
lim
0
10
x
x x
x
3 0
1 1
11
x
x x
x
3 0
8 1
2
12
2 5 2
7 11
8 lim3 2
x x
x
13
x
x x
x
1 6 1 4 1 lim
0
14
x
x x
x
1 1 lim3 0
15
2 3
7 11
8 lim3 2
x x
x
0
6 1 4 1 lim
x
x x
x
17
1
7 5
3 2 3
x x x
18
x
x x
x
1 4 1 2 1
0