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Mathematics
Mathematics
Problem
Which of the following equals
d
d
x
(
sec
x
)
\dfrac{d}{dx}\bigl(\sec x\bigr)
d
x
d
(
sec
x
)
? a)
−
sec
x
tan
x
-\sec x\tan x
−
sec
x
tan
x
b)
tan
x
\tan x
tan
x
c)
sec
x
tan
x
\sec x\tan x
sec
x
tan
x
d)
sec
2
x
\sec^{2}x
sec
2
x
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