what is the first derivative of

sec^2 x ...

thanks =)

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- Apr 27th 2008, 02:35 PMgo.leafs.go.89derivativeswhat is the first derivative of

sec^2 x ...

thanks =)

- Apr 27th 2008, 02:38 PMstorpotaten
- Apr 27th 2008, 02:40 PMgo.leafs.go.89so the derivative of sec x is tan x?

- Apr 27th 2008, 02:42 PMTheEmptySet
- Apr 27th 2008, 02:50 PMgo.leafs.go.89hmm

i had to use that in a question

lim tan x - x

x->0 ---------

x^2

i used l'hopital's rule to do this .. but couldn't get very far ..

any suggestions?

- Apr 27th 2008, 03:02 PMTheEmptySet
- Apr 27th 2008, 03:05 PMgo.leafs.go.89
- Apr 27th 2008, 03:51 PMTheEmptySet
- Apr 27th 2008, 03:53 PMgo.leafs.go.89
thanks so much!