Which
of the
following
expressions would
be true for an
integer 'X' greater
than 1, whose square
root and cube root
are integers a and b
respectively?
A. x2 = x3
B. (a2)3 = (13)
C. X is a perfect
3
square.
D. a is
a is a perfect
square.
Answers
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D. a is a perfect square
Explanation :
as any number's square which is greater than 1 is perfect only .
eg: 2²=4 which is perfect
5²=25 which is also perfect
13²=169 this too is perfect square, etc.
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