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Standard XII
Physics
Types of Lenses
8. How to fin...
Question
8. How to find the value of log7 base 10.
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Similar questions
Q.
Find the value of :
(i)
log
1
/
2
8
(ii)
log
5
0.008
(iii)
log
5
3125
(iv)
log
7
3
√
7
Q.
Simplify the following.
(i)
log
10
3
+
log
10
3
(ii)
log
25
35
−
log
25
10
(iii)
log
7
21
+
log
7
77
+
log
7
88
−
log
7
121
−
log
7
24
(iv)
log
8
16
+
log
8
52
−
1
log
13
8
(v)
5
log
10
2
+
2
log
10
3
−
6
log
64
4
(vi)
log
10
8
+
log
10
5
−
log
10
4
Q.
Find the value of
log
7
using series expansion.
Q.
Find the value of
49
(
1
−
log
7
2
)
+
5
−
log
5
4
Q.
Given
log
2
=
.
3010300
,
log
3
=
.
4771213
,
log
7
=
.
8450980
,
find the value of
log
64
.
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