Pre-Calculus: Intro to Sine and Cosine Graphs

[Wargamer008]

This guy is just a math genious. i get A+s all the time, but this guy helps me understand the material MORE.



[dyonnegalata]

IF YOU MEMORIZE THE UNIT CIRCLE YOU CAN ANSWER THIS QUESTIONS FROM THE TOP OF YOUR HEAD.

[Shukria123]

pie.....ah.............

- Homer Simpson

[ImpendingDisaster26]

HOW DOES HE HAVE CAMERA INSTALLED INTO HIS PAPER!!!???

[Mrslykid1992]

Look up converting degrees to radians, I got an ideal concept of graphing trig functions from there but on other hand I hate cosecant, secant, and co tangent.

[Tyncidog]

Thanks! I was a bit confused with the all students take calculus saying and then I watched ur video and it makes sense now!

[tomtommyx]

this guy can draw really straight lines

[AceJKL]

math is getting hard. :(

i'm taking this next year as a sophmore

[iVilliain]

why did he say "all seniors take calculus" lol? seems irrelevant or an easy way to remember something?

[thug4life321]

@iVilliain because in the 1st quadrin all angles are positive, A

2nd ONLY sin is positive, S

3rd ONLY tan is positive, and  T

4th ONLY cos is positive C

[thug4life321]

@iVilliain @iVilliain because in the 1st quadrin all angles are positive, A

2nd ONLY sin is positive,  S

3rd ONLY tan is positive, and T

4th ONLY cos is positive C

[JustinBeiberRocksFTW]

@iVilliain i guess its just an easy way for him to remember something xD

[iVilliain]

why did he say "all seniors take calculus" lol? seems irrelevant or an easy way to remember something?

[moseseseseses]

You now know why more students drop out of high school. It was determined years ago that algebra is the reason that more students drop out of high school, more than any other subject. You see the way this guy teaches, he does so on the presumption that you know all the prerequisite knowledge up to this point, and that is the nut-way algebra is taught in high school, and students learn to love to hate math. Look further , there are some math teachers on you tube that break it down well .

[xlilmissbluex]

hey i get it :]

[Taste0love]

fuck math, I don't get shit

[boparaiable]

Hahaha ALL. SENIORS. TAKE. CALCULUS. ?

[boparaiable]

Hahaha ALL. SENIORS. TAKE. CALCULUS.

[goose0139]

Thank you i just wanted to know the reason why sin was graph that way!!!!!!

[aiG0oChamNa]

interesting shirt/tie color choice

[Mu5clehead]

@aiG0oChamNa jeeez, he's trying to be unique

[aiG0oChamNa]

@Mu5clehead

loll it looks like barf though :P

[astt171]

Thank you so much and that was very helpful.

[ATTOJ90]

lol there isnt a reference angle for Quadrantal Angles

[Leo90]

@ATTOJ90 ,

The reference angle for any quadrantal angle is zero.

[prmchuk]

@Leo90 actualy it depends which one. ref. angle of 270 is 90...

[DanielGannage]

@ATTOJ90 now there is