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Byju's Answer
Standard VII
Mathematics
Exponents with Like Bases
If ab = 12 ...
Question
If
a
b
=
(
1
2
)
−
3
×
(
5
6
)
0
,
find the the value of
(
a
b
)
−
2
A
1
74
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B
1
44
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C
1
4
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D
1
64
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Solution
The correct option is
D
1
64
a
b
=
(
1
2
)
−
3
×
(
5
6
)
o
a
b
=
(
2
)
3
×
1
a
b
=
8
(
a
b
)
−
2
=
(
8
)
−
2
=
1
8
2
(
a
b
)
−
2
=
1
64
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Similar questions
Q.
The value of 64
-1/3
(64
1/3
-64
2/3
), is
(a) 1
(b)
1
3
(c) −3
(d) −2