Introducing the Derivative

[@marciolimatech]

Hi! Tks for the explain. In the last version, I can't find the "tangent" function. it did change?

[@GeoGebraChannel]

Hi Marcio. See kzbin.info/www/bejne/oWPJaKuol99pfNE for the answer to your question.

[@holery9215]

Thank you so much, it's very usefull:)

[@SiwiPenny]

why there is no sound?