Trigonometry Unit Circle sin cos tan cot sec sosec 2

[santacloud9]

i love the accent,,,:D

[reelcash]

Is Robin Williams the teacher?

[zulaaltan]

haha im getting all excited!

[goldenchest1]

So you're saying that all middle schoolers should be familiar with trigonometric identities and the unit circle.. right...

[undertake782]

@goldenchest1 Actually, in different countries, most of them learn trig identities before high school. We are just behind in our curriculum in the US.

[skinnym7]

lol how bout that

thank youu

[Iforgetmainame]

nice!

[honibeeblue]

i really enjoyed watching this video...never understood this cast system.... but i know now :) thank u..keep up the good work :)

[596victoria]

...this is a great help for me...

...i'm studying trigonometry now and it kills me...

...thank you very much for this video......

...thanks a lot...

[lailautari]

I wish you were my teacher in my junior..:-(

thank you so much...:-)