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Mathematics
Problem
What is
d
d
x
(
tan
x
)
\dfrac{d}{dx}(\tan x)
d
x
d
(
tan
x
)
? a)
sec
x
tan
x
\sec x\tan x
sec
x
tan
x
b)
−
csc
2
x
-\csc^{2} x
−
csc
2
x
c)
sec
2
x
\sec^{2} x
sec
2
x
d)
sec
x
\sec x
sec
x
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