0.75 2X X X X11 10 ( 1)( 10) 9 LIM LIMĐIỂM A) 2 2 2( 1...
Câu 4 0.75
2
x x x x
11 10 ( 1)( 10) 9
lim lim
điểm a)
2 2 2( 1) 2
x x
x
x
1
1
lim 2 lim ( 6 2) 4
b)
6 2
x
2
2
2 3 1x x x xlim ( 4 2 3 2 1) lim ( ) 1c)2
4 2 3 2 2x x x
3
2
x x x
5 7 11
lim 7 2
1
3
x
x
d)
2
3
2
3
( 1)( 4 11)[( 7) 2 7 4)
x x x x x
lim 168
1
1