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Mathematics
Problem
Let
P
P
P
be a non-singular square matrix and
Q
,
R
Q,\,R
Q
,
R
be matrices of the same order such that
P
(
Q
+
R
)
+
P
(
R
−
2
Q
)
=
5
P
P(Q+R)+P(R-2Q)=5P
P
(
Q
+
R
)
+
P
(
R
−
2
Q
)
=
5
P
. Express
R
R
R
in terms of
Q
Q
Q
and
I
I
I
.
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