Properties
Category
English
Similar Topics
Statistics
Comments
1
Participants
2
Subscribers
2
Votes
1
Views
290
Share
Unexpectedly 'Derivative' function in CAS got the wrong answer!
Solved
Hi,
When I plugin f(sec(x)) inside the Derivative function where f is an arbitrary function, sec is reciprocal of the cosine function.
Derivative(f(sec(x)),x) returns (sin(x) * f'(1 / cos(x) / (cos(x))^(2))) instead of (sin(x) / (cos(x))^(2) * f'(1 / cos(x)))
By applying the chain rule /cos(x)^2 should be outside the f' function not inside as CAS return.
You can check wolfram alpha if this isn't clear.
I hope you get the idea.
 GeoGebra
 Help
 Partners

Contact us
 Feedback & Questions
 This email address is being protected from spambots. You need JavaScript enabled to view it.
 +43 677 6137 2693
© 2022 International GeoGebra Institute
Fixed for v650
Comments have been locked on this page!