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UPSC NDA II 2013 Mathematics Paper
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© examsnet.com
Question : 109
Total: 120
Let
A
=
{
a
,
b
,
c
,
d
}
and
B
=
{
x
,
y
,
z
}
. What is the number of elements in
A
×
B
?
6
7
12
64
Validate
Solution:
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