Hello everyone! Welcome to another short post from the series of Random Bugs, where I bring up some of the random questions that pop into my (and possibly anybody else’s) head throughout the day, and finally look for a satisfactory answer.

# Month: October 2015

## (Seven deadly) sines and cosines, part II

Ola! It’s time to do some more trigonometry! I already gave you proofs of the first seven identities, which you can find here. There’s still a lot more in what my friend Tomáš sent me and so here we go, seven more formulas, seven more proofs. And today we’re starting with…