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Mathematics
Mathematics
Problem
Prove that
tan
82
1
2
∘
=
(
3
+
2
)
(
2
+
1
)
\tan 82\frac{1}{2}^\circ = (\sqrt{3} + \sqrt{2})(\sqrt{2} + 1)
tan
82
2
1
∘
=
(
3
+
2
)
(
2
+
1
)
or
cot
7
1
2
∘
=
2
+
3
+
4
+
6
\cot 7\frac{1}{2}^\circ = \sqrt{2} + \sqrt{3} + \sqrt{4} + \sqrt{6}
cot
7
2
1
∘
=
2
+
3
+
4
+
6
.
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