Test:
Logarithms II - Ambitious
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Question 1:
Calculate
25
log
5
(
4
)
+
e
2
-
ln
(
e
2
)
+
3
log
5
(
5
)
=
...
A
1
B
20
C
8
D
16
Question 2:
Find
x
, if
x
log
4
(
16
)
=
25
A
x
=
4
B
x
1
=
2
,
x
2
=
-
2
C
x
=
5
2
D
x
1
=
5
,
x
2
=
-
5
Question 3:
Calculate
log
5
(
48
)
, if
log
5
(
3
)
=
a
,
log
5
(
2
)
=
b
A
2
a
+
4
b
B
a
+
b
C
a
2
b
2
D
a
+
4
b
Question 4:
Find
x
, if
log
1
6
(
x
2
-
7
x
+
18
)
=
-
1
A
x
1
=
-
3
,
x
2
=
4
B
x
1
=
3
,
x
2
=
4
C
x
=
0
D
x
=
1
Question 5:
Find
x
, if
log
4
(
x
4096
)
×
log
4
(
x
)
=
7
A
x
=
32
B
x
1
=
256
,
x
2
=
16
C
x
1
=
16384
,
x
2
=
1
4
D
x
1
=
4096
,
x
2
=
8
Question 6:
Calculate
log
5
(
0.04
)
+
log
5
(
25
)
=
...
A
5
B
1
C
0.04
D
0
Question 7:
Calculate
5
3
log
5
(
2
)
+
log
1
4
(
32
)
=
...
A
0.5
B
2
C
-
5.5
D
5.5
Question 8:
Find
x
, if
2
log
5
(
x
)
+
log
5
(
4
)
=
2
A
x
=
5
2
B
x
=
±
5
2
C
x
=
1
D
x
=
4
Question 9:
Find
x
, if
log
2
2
(
x
)
=
9
A
x
=
1
8
B
x
1
=
3
,
x
2
=
1
3
C
x
1
=
8
,
x
2
=
1
8
D
x
=
8
Question 10:
Find
x
, if
log
5
(
x
2
-
3
x
+
7
)
=
5
A
x
=
1
B
x
1
=
-
2
,
x
2
=
1
C
x
=
0
D
x
1
=
2
,
x
2
=
1
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