Find the Error! - Precal 11 Episode 1
Can you find the error in this math problem? In this problem we are given a point through which a terminal arm passes and we then have to solve the three exact trig ratios that correspond with the standard angle.
Pythagorean theorem, simplifying fractions and radicals, so many opportunities to botch this up. If you can find the error, give yourself a smile, and feel free to give a smile in the comments below.
Don't spoil the fun for everyone else though! ^_^