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Mathematics
Problem
In Exercises 11-51, prove the identity. 45.
tan
x
1
−
cot
x
+
cot
x
1
−
tan
x
=
1
+
sec
x
csc
x
\frac{\tan x}{1-\cot x}+\frac{\cot x}{1-\tan x}=1+\sec x \csc x
1
−
c
o
t
x
t
a
n
x
+
1
−
t
a
n
x
c
o
t
x
=
1
+
sec
x
csc
x
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