Tsurugi is feeling down, thinking her teaching method is bad, so...If you know the lengths of the three sides, then the cosine is... erm...That's something only people who are good at studying would say!Wouldn't that defeat the entire purpose of being taught!?"Maths is easy if you just remember the formulas and apply them"!?Ahhh! I don't get any of thisFor those of us who struggle, that's the hard part!Waaah! Even though I'm one of the true elite and everything!Could you at least pretend to understand?
