Pre-Calculus: Fundamental Trigonometric Identities

[iSuperSmashBros]

can anyone help me with this: tan(2x) – sin(2x) = 2tan(2x)sin^2(x) ? Thanks :) Any help would be greatly appreciated!

[Solcito1235]

I love this guy so much

[BorealNeal]

awwww i was learning about trig identities come on

[DoubleAIV]

lol 5 idoit STILL failed their quiz

[chelitogohan]

just remember the SOH (Opposite over Hypotenuse) CAH(Adjacent over Hypotenuse) and TOA(Opposite over Adjacent)

[elmersglue16]

Or Some Old Hippie Caught A High Trippin On Acid

[sohoyankee66]

@elmersglue16 Now that I'll remember! Thanks for posting....

[yourteendreamgirl15]

>:( rip off!!!!

[Taste0love]

-.- I was in the middle of learning, fail.

[LaBoriShorti]

My teacher told me to remember: Oh Hell Another Hour Of Algebra :P

[jtjjbannie]

symplify it.

[heliumexplosion420]

This guy was my epic computer teacher in Highschool, super boring!!!

[Ironsixx]

my math teacher shows videos of this guy teaching cuz he is too lazy too. thanks mr harrison. damn nigga

[PkedYou]

Some old hippie caught another hipping tripping on acid.

SOH CAH TOA

[98abbygail]

@mynameisnicholas Yeeessss, I am 12! Lol. ... This stuff is so easy to me now O.O

[DeadstarSunburn]

@98abbygail it gets harder. this is easier stuff, just so you know.

[98abbygail]

Oh my, I'm 12, and this video has helped me lots with my at home studies!!! Thank you so much!!!!!!! Yes, I am 12 xD

[mynameisnicholas]

@98abbygail are you 12 by any chance?

[Vorbis5]

@98abbygail nobody cares that your 12

[AncientButterfly382]

@98abbygail I wouldn't say that out loud if I were you. Being under 13 is a violation of ToS on YouTube.

[KINGofKOOLAID]

math is boring, thats why i dont do math

[gobbledygookie]

@KINGofKOOLAID that's why you're in burger king

[KINGofKOOLAID]

@gobbledygookie actually no im not and when i meant math, i mean what this guy is doing. I just do enough to get an A in class.

[MikeDunn]

You don't have to memorize this. Just remember Soh - Cah - Toa.

[Aversity6]

@MikeDunn fail? you obv do not know all the identities.

[MikeDunn]

@Aversity6 he didn't cover the other identities you fag.

[Aversity6]

@MikeDunn lawl dont rage son. Read, kid. this isnt the full course, Think before you type something.

[MikeDunn]

@Aversity6 I never said it was the full course. Obviously I was referring to what was covered in the video you fag.

[b112895]

@MikeDunn WRONG its

Some Other Hyppie

Caught Another Hyppie

Tripping On Acid

[MikeDunn]

@b112895 same thing, dude. And you spelled hippie incorrectly.

[VanB13]

ur great

[6allrandom9]

hey,why purple and orange?...why not?

[GHLemaitre]

isn't trig beautiful? It never seemed like math to me more like poetry.

[supergenius123]

@GHLemaitre lol

[chemistrycoolguyscom]

i can understand this lesson well its looks confusing

[deathbyboredom91]

better yet, why purple and orange?

[l8rios]

@deathbyboredom91

cmon you guys.

worried about the colors?

pls focus on the important items

[supergenius123]

@deathbyboredom91 He wears that in every single lecture

xDDD

[abrahamsocool]

He pulls it off

[Solcito1235]

@deathbyboredom91 why not? ;)

[EdwardCullensMayo]

@deathbyboredom91 clemson colors :)

[redegg3]

why purple?