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Mathematics
Problem
Simplify
tan
(
−
θ
)
+
tan
θ
\tan(-\theta)+\tan\theta
tan
(
−
θ
)
+
tan
θ
for any
θ
\theta
θ
where
cos
θ
≠
0
\cos \theta\neq 0
cos
θ
=
0
. a)
2
tan
θ
2\tan\theta
2
tan
θ
b)
0
0
0
c)
tan
2
θ
\tan^{2}\theta
tan
2
θ
d)
sec
2
θ
\sec^{2}\theta
sec
2
θ
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