March 15, 2011

Hey everyone :D ! today in our pre-calculus class . We review some of what we learned in grade.10. We solve the right triangle using the pythagorean theorem () and the popular SOH CAH TOA. Then, Mr.Piatek reviewed to us the Cosine Law with an equation of:

a² = b² + c² - 2bc cosA

b² = a² + c² - 2ac cosB

c² = a² + b² - 2ab cosC

and he also reviewed to us the Sine Law that has an equation of:

.

during the class Mr.Piatek gave us three worksheets (Right Triangle Trigonometry, Law Of Sines and Law of Cosines) to work on so that we can review better . bye ! have fun doing the worksheets :D !