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Mathematics
Mathematics
Problem
Find the derivative of
f
(
tan
x
)
f(\tan x)
f
(
tan
x
)
w.r.t.
g
(
sec
x
)
g(\sec x)
g
(
sec
x
)
at
x
=
π
4
x = \frac{\pi}{4}
x
=
4
π
, where
f
′
(
1
)
=
2
f'(1) = 2
f
′
(
1
)
=
2
and
g
′
(
2
)
=
4
g'(\sqrt{2}) = 4
g
′
(
2
)
=
4
.
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