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Mathematics
Mathematics
Problem
Find
d
d
x
(
sec
x
)
\dfrac{d}{dx}(\sec x)
d
x
d
(
sec
x
)
at
x
=
π
3
x=\dfrac{\pi}{3}
x
=
3
π
. a)
−
2
3
-2\sqrt3
−
2
3
b)
3
\sqrt3
3
c)
2
3
2\sqrt3
2
3
d)
2
3
\dfrac{2}{\sqrt3}
3
2
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