Analytic Geometry

At first, I thought it was just a review about the lessons in 3rd and 4th year in High School but I was wrong.
It's more complicated and amusing.
Simple terms used in the earlier years are expanded, derived and used at many things.
Every lesson is a part of another. It's like a chain, if one joint breaks it will be very difficult to recover.

I really like how our teacher teaches our lesson, he emphasizes and elaborates simple terms and conditions especially of the "what" and "where" it came from.

-Thanks for reading!