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Oh, I just wanna to some precal right now
We could go learn any day, any night Classmates, I'll teach you now, teach you now
Classmates, I'll teach you now, yeah
Oh, I'll tell you, tell you, tell you how to start off
You can go get, get all of your junk
Classmates, we're starting now, starting now
Classmates, we're starting now, yeah
SOH-CAH-TOA
Is where we'll start Get your pencils
Yeah, S-O-H-C-A-H-T-O-A
So-o-oh
Opposite over hypotenuse Next is cosine, cosine
So switch it to adjacent Then it's tangent
Opposite over adjacent, adjacent
Now, let me teach you
Oh, unit circle, angles in standard position
Now, cosecant, secant, and cotangent Opposite of the three, of the three
Opposite of the three, yeah
Oh, now i'm gonna show you about the law of cosines
A squared equals C squared plus B squared
Then subtract 2BC, 2BC
Multiplied by cosine A
Now Law of Sines
Is more simple You just use sines
Yeah, so just take note of all the sides and
Put them on
Top of the matching sine They should all be equal, equal
Next part we're gonna show you now Area of a triangle
Two sides times sines of the unused sides
Then, divide by two
That's all you should do Just divide by two
It's pretty simple Yeah, divide by two
C'mon
Na na na na na na na na Na na na na na na na na
Na na na na na na na na
Yeah, so now it's gonna be Heroes
Formula
You just take the square root Of S times S minus A, same goes for B and C
Now, it's semiperimeter
The sum of all the sides times half It's for Heroes Formula; it's equal to S
Now, it is the end The end of chapter five
Guys, let's say yeah, yeah, yeah, yeah, yeah, yeah
So, if you wanna throw your books And you just wanna go to sleep
Just take a nap, nap
No, pay attention!
Jesus Christ, you guys!!
[Laughing Direction]
Choking, in 3, 2...
Deyanira's choking to death....
Wizard in the HOUSE!
"The Line of Cosaw" LOL
NOTE: Deyanira's were hurt in the making of this video.
[One Way or Another - One Direction] (Charity Single, You Should Buy It!!)