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Mathematics
Problem
In Exercises 11-51, prove the identity. 16.
tan
x
+
sec
x
=
cos
x
1
−
sin
x
\tan x+\sec x=\frac{\cos x}{1-\sin x}
tan
x
+
sec
x
=
1
−
s
i
n
x
c
o
s
x
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