Introduction To Trigonometric Functions -- Sine Cosine and Tangent -- Trigonometry

[@yemoeaung950]

This was very helpful. The best explanation I've ever heard.

[@raidenchimera6316]

This was extremely helpful and the best explanation I've heard so far! Awesome job

[@sarawheelwright1144]

By son says, "Yes, that was amazing! It was VERY helpful!"

[@deisytrinidad633]

Thanks for helping me pass my test!

[@chrisbull3310]

this was truly a eureka moment for me!!! why did my math teacher make it seem so difficult??

[@NgocAnh-ul2mr]

I knew this... But this is the first time I have ever known it through English

[@helaluddin8079]

It's so nice

[@blissed4700]

Is theta a radian? I'm trying to understand this other book that describes the angle as a radian.