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Byju's Answer
Standard XII
Mathematics
Fundamental Laws of Logarithms
The value of ...
Question
The value of
81
(
1
/
log
5
3
)
+
27
log
9
36
+
3
(
4
/
log
7
9
)
is
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Solution
We know that
a
log
a
b
=
b
81
(
1
/
log
5
3
)
+
27
log
9
36
+
3
(
4
/
log
7
9
)
=
(
3
4
)
log
3
5
+
(
3
3
)
log
3
2
6
2
+
3
4
log
9
7
=
3
log
3
5
4
+
(
3
3
)
log
3
6
+
3
4
log
3
2
7
=
5
4
+
3
log
3
6
3
+
3
2
log
3
7
=
625
+
6
3
+
3
log
3
7
2
=
625
+
216
+
7
2
=
890
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Q.
Find the value of the following expression:
81
1
log
5
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+
27
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9
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+
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Q.
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