2.4.1 So­lu­tion math­ops-a

Ques­tion:

So what is the re­sult if the op­er­a­tor ${\rm d}$$\raisebox{.5pt}{$/$}$​${\rm d}{x}$ is ap­plied to the func­tion $\sin(x)$?

An­swer:

Its de­riv­a­tive, the func­tion $\cos(x)$, [1, p. 60].