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Mathematics
Mathematics
Problem
If angle
C
C
C
of triangle
A
B
C
ABC
A
B
C
is
90
∘
90^\circ
9
0
∘
, then prove that
tan
A
+
tan
B
=
c
2
a
b
\tan A + \tan B = \frac{c^2}{ab}
tan
A
+
tan
B
=
ab
c
2
(where,
a
,
b
,
c
a, b, c
a
,
b
,
c
are sides opposite to angles
A
,
B
,
C
A, B, C
A
,
B
,
C
, respectively).
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