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Byju's Answer
Standard X
Mathematics
Properties of Logarithms
Match the fol...
Question
Match the following with the correct value of x in each of the below cases.
A
7
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B
8
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C
3
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D
64
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Solution
Case(1):
log
2
256
=
x
x
=
8
log
2
2
x
=
8
×
1
x
=
8
Case(2):
log
x
343
=
3
log
x
7
3
=
3
3
log
x
7
=
3
log
x
7
=
1
x
1
=
7
x
=
7
Case(3):
In exponential form,
log
4
x
=
3
can be written as
4
3
=
x
x
=
64
Case(4):
log
3
4
=
1
log
4
x
Since,
log
a
b
=
1
log
b
a
So,
x
=
3
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