Trig is too fucking easy to explain.

it stuck well in me...mostly because it sound like its a haka lyric in te reo maori

toh cah toh, HE

toh cah toh, HE

toh cah toh, te ranga waikato whanga reia maori ay
NEI NEI NEI
ara tu ara te ara toh

 

I guess it's a location thing

It does sound like some sort of greeting, ever since I learned it I threw the trig tables away.... some equality statements .. i'm set for any right triangle
and I have to do trig more than most people as a machinist

 

Yeah I had to take 12 weeks of trig and I was thinking about it the other day and it basically boils down to that trig identity:

(sin)^2 + (cos)^2 = 1

but that is the same as the pythagorean theorem:

a^2 + b^2 = c^2

divide both sides by c^2

(a/c)^2 + (b/c)^2 = 1

(opp/hyp)^2 + (adj/hyp)^2 = 1

(sin)^2 + (cos)^2 = 1

You can divide it by a^2, b^2 or c^2 to get the other special trig identities.

So basically if you know the pythagorean theorem and the unit circle you know trig, and they stretch that into a 12 week class... everything else gets pretty much handled with the chain rule in calculus..

 

The only time I cared to have a boyfriend was when I had a math class. :tongue: I had no use for all of that crap, so I would date the math nerd.

 

*nods*

it is really easy. i had a really hard time doing proofs in geometry, though. i'd always leave bits out even if the answer was right.

 

yeah we started doin trig in honors geometry

I always liked it

 

yes yes, trig is easy. it is typically integrated into every year of math from junior high through early high school. then i took college calculus when i was a high school senior, went off to college, and they made me sign up for basic trig. i never actually went to that class... i only got a B, because there were pop quizzes that i was not there for.

this post feels particularly pointless to me; i can barely even follow it... oh well.

 

feels particularly pointless to me

damn... now you're bringing geometry into it

 

can anyone calculate a trig function from first principles? theres that polynomial theorum that the more variable you give it the more accurate it can become but its not near perfect

 

That's what we learnt.. year 9 our whole class crammed for the SATs (which they've scrapped now) to get a higher grade. We did it so you'd think we're half decent at it but now we're the shittiest math class ever.

 

for some reason i rocked proofs. i actually enjoyed geometry... i had a great teacher.