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Trigo-nom-etry (lemmy.world)

submitted 1 week ago by HootinNHollerin@lemmy.world to c/science_memes@mander.xyz

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[-] TwilightKiddy@programming.dev 183 points 1 week ago

If someone didn't learn enough trigonometry in school:

1+tan^2^c = cos^2^c/cos^2^c + sin^2^c/cos^2^c = (cos^2^c + sin^2^c)/cos^2^c = 1/cos^2^c;

sqrt(1/cos^2^c) = |sec c|

And here is for the people who still don't get the joke

The reading of the answer is very similar to the word "sexy", which makes the whole sentence a reference to the song "Sexy and I Know It" by LMFAO.

[-] realitista@lemm.ee 4 points 6 days ago* (last edited 6 days ago)

I learned it but promptly forgot it. Thanks.

[-] Asafum@feddit.nl 40 points 1 week ago

Thanks for this! While I absolutely love science, math is why I never pursued it.

That and I'm waaaaayyyyyyyyyyyyy too stupid. Lol

[-] HootinNHollerin@lemmy.world 16 points 1 week ago

But I was taught that the proof was in the pudding

[-] JackbyDev@programming.dev 12 points 1 week ago

Thank you for this. Trig was definitely the hardest of the maths for me.

[-] abbadon420@lemm.ee 4 points 6 days ago

I never learned it. This is one of the few times in my life where it would've been useful

[-] ptz@dubvee.org 8 points 1 week ago

I was in advanced math classes from like 4th grade all the way up to AP Calc 2 my junior year. Aced all of them except trig. I just could not wrap my head around it.

[-] A_Union_of_Kobolds@lemmy.world 8 points 1 week ago

Trig isn't that bad? It's just about relationships between angles and triangles/circles. If you learn SOH CAH TOA and what the inverses are/mean you've pretty much got it.

[-] Takumidesh@lemmy.world 7 points 1 week ago

I struggle with trig because it's a lot of memorization. The fundamentals are pretty easy, but I never remember the unit circle and I never remember all of the identities.

[-] TwilightKiddy@programming.dev 4 points 1 week ago

I only remember useful things. And I consider these useful because I did some low level graphics programmed once and had to use them in practice. Once you understand why these things exist, it becomes that much easier.