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UPSC 2013 CDS 1 Math Paper
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© examsnet.com
Question : 36
Total: 100
The HCF of
(
x
4
−
y
4
)
and
(
x
6
−
y
6
)
is
x
2
−
y
2
x
−
y
x
3
−
y
3
x
4
−
y
4
Validate
Solution:
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