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Grade 8 - Mathematics
6.2 n
^{th}
Root Problems - II
Example:
Cube root of a
^{9}
b
^{-6}
.
Solution:
(a
^{9}
b
^{-6}
)
^{1/3}
= a
^{9/3}
b
^{-6/3}
= a
^{3}
b
^{-2}
Directions:
Solve the following problems. Also write at least ten examples of your own.
Q 1
: 4
^{th}
root of a
^{8}
b
^{-4}
= _____.
a
^{6}
b
^{-1}
a
^{2}
b
^{-2}
None of these
a
^{2}
b
^{-1}
Q 2
: Cube root of 27a
^{3}
b
^{6}
= _____.
None of these
27a
^{2}
b
^{-1}
3a
^{2}
b
^{-1}
3a
^{}
b
^{2}
Q 3
: Square root of a
^{6}
b
^{-4}
= _____.
a
^{2}
b
^{-1}
a
^{2}
b
^{-3}
None of these
a
^{3}
b
^{-2}
Q 4
: Square root of 36a
^{4}
b
^{-2}
= _____.
6a
^{2}
b
^{-1}
36a
^{2}
b
^{-1}
6a
^{}
b
^{-1}
None of these
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