CHO D LN 2 LN 3 1 2 X A BX X0A. A B+ =2 B. A−2B=0 C. A B+ = −2 D. A...
Câu 47: Cho
d
ln 2
ln 3
1
2
x
a
b
x
x
0
A.
a b
+ =
2
B.
a
−
2
b
=
0
C.
a b
+ = −
2
D.
a
+
2
b
=
0
+
−
−
x
x
x
+
+
=
+
+
Câu 47: Cho
d
ln 2
ln 3
1
2
x
a
b
x
x
0
A.
a b
+ =
2
B.
a
−
2
b
=
0
C.
a b
+ = −
2
D.
a
+
2
b
=
0
+
−
−
x
x
x
+
+
=
+
+