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JEE Advanced 2017 Paper 2 Mathematics Q5
Mathematics
Problem
How many
3
×
3
3\times3
3
×
3
matrices
M
M
M
with entries from
{
0
,
1
,
2
}
\{0,1,2\}
{
0
,
1
,
2
}
are there, for which the sum of the diagonal entries of
M
T
M
M^TM
M
T
M
is
5
5
5
?
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