= + Y X XB/ 2 13 SIN3− +2X 5X 3SXA LIM= + −X 1 23X X 4→...
Câu 7 :
=
+
y
x
x
b/
2
1
3
sin
3
−
+
2x
5x 3
S
x
A lim
=
+ −
x 1
2
3x
x 4
→
'
6
1
.sin
(
)
( )=
−
2
−
+
−
x 1 2x
2x 3
0,25
lim
x 1 3x 4
=
−
+
(
)(
)
x 1
K
3
1
.cos
+
+
x
x
D
A
2x
2x 3
+
−
lim
3x 4
=
+
1
I
H
O
=
---
7
M
B
C
=
=
+