3 ms·
Tan, cotan, sec, cosec have practical value in calculus. It might be a little unfair to expect your trig teacher to prove that to you.
by comrade_ogilvy 13y ago
Tan, cotan, sec, cosec have practical value in calculus.
It might be a little unfair to expect your trig teacher to prove that to you.
- FkZ 13y agoIf they're going to be taught, it is fair to expect the motivation for teaching them.