I was reading my notes and I came across these 2 lines, Im wondering how did it go from $\sin$ to $\sinh$?
$-5\sin i\pi$
$ = -5i\sinh \pi$
I was reading my notes and I came across these 2 lines, Im wondering how did it go from $\sin$ to $\sinh$?
$-5\sin i\pi$
$ = -5i\sinh \pi$