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Mathematics
Mathematics
Problem
If
tan
A
+
cot
A
=
6
\tan A + \cot A = 6
tan
A
+
cot
A
=
6
, then find the value of
tan
2
A
+
cot
2
A
−
4
\tan^2 A + \cot^2 A - 4
tan
2
A
+
cot
2
A
−
4
.
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