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Mathematics
Mathematics
Problem
The minimum value of
cos
2
θ
+
6
sin
θ
cos
θ
+
3
sin
2
θ
+
3
\cos^2 \theta + 6\sin \theta \cos \theta + 3\sin^2 \theta + 3
cos
2
θ
+
6
sin
θ
cos
θ
+
3
sin
2
θ
+
3
is
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