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Byju's Answer
Standard IX
Mathematics
Property 6
What is the 4...
Question
What is the
4
th
root of 256?
A
4
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B
8
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C
16
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D
2
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Solution
The correct option is
A
4
The
4
th
root of 256 can be written as
256
1
4
.
We know that
256
=
4
×
4
×
4
×
4.
⟹
256
1
4
=
(
4
×
4
×
4
×
4
)
1
4
i.e.,
256
1
4
=
(
4
4
)
1
4
256
1
4
=
4
4
×
1
4
(
∵
(
a
m
)
n
=
a
m
n
)
256
1
4
=
4
∴
The
4
th
root of 256 is 4.
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