Trick to memorize trigonometric functions
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Uploaded by RiemannZetaFunction on Dec 7, 2008
Easy way to memorize trigonometric functions
Many of you have pointed out that sohcahtoa is much easier to remember. This is is great for high school trig, but what about university level proofs? How do you use sohcahtoa to determine which identities multiply together to give sec(x)?
Also, a couple of you have mentioned cosh and sinh functions. FYI these functions are the complex analogues to cos and sin functions respectively. Specifically cosh(x) = cos(ix) and sinh(x) = -isin(ix), where i represent the immaginary unit (the square root of -1).
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@DeRaedtLevi get a life :|
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GENIUS!!!!
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Vey useful for idiots...
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woooooowwwwww this is good stuff
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ummm.. actually they do.. It's called the hexagon rule.. They teach it here in Asia.. U americans just aren't good at math. sorry :(
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@Zarathustra799 8 MONTHS have passed and i am not inside trig's stomach! ha! lol jkjk
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didn't understand /\/!gga
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hey, you! little 6 grade punk! you think you're grown up enough for trig?! haha!
TRIG WILL EAT YOU!
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Great tool! I needed this for my Calc II test! Thanks again!
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GOD! This is awesome!
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sohcahtoa.
myavrilrocks 7 months ago 8
Very useful for secondary students
aakif07 5 months ago 3