maths..

by portugeezer • 1 Jun 2008, 21:46 • Journals
hey can someone help me revise sohcatoa (sin cos and tan) i find it fucking retarded!!!!

i dont understand how i use sin cos and tan and what the rules for it are.
Comments
24
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Quazz 1 Jun 2008, 22:48
Erm lol ? So easy , but only can explain it in Dutch lol :DDD
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Deactivated7001 1 Jun 2008, 22:49
What exactly do u need or u want to know?
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portugeezer 1 Jun 2008, 22:50
i dont understand how i use sin cos and tan and what the rules for it are.
Parent
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Deactivated7001 1 Jun 2008, 22:53
http://www.mathwords.com/s/sohcahtoa.htm

Does this link help u? It's just the relation/ratio between "sides of a triangel". Try to find at first the right angle (90°). So u know which side is what. Now u can simple use the rules, which u can find in the link.
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portugeezer 1 Jun 2008, 22:56
yeh i know that but i dont when to use each of them?
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Deactivated7001 1 Jun 2008, 22:57
I don't understand exactly your problem. Could u post a task?
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portugeezer 1 Jun 2008, 22:59
basicly i dont know when to use sin for example and how.

would it be like sin and angle = something or what?
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Deactivated7001 1 Jun 2008, 23:45
Oh fuck. I forgot completly to check crossfire again.

It depends what u have given.

For example:

image: sohcahtoa%20example%201

We want the angel of 8(the angel, crossfire is not supporting the sign so I use 8). We have the value of 3 and 4. The tan ratio of 3 and 4 is the angel value 8. So tan 3/4.
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pred 1 Jun 2008, 22:49
whats there to explain?
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darnok 1 Jun 2008, 22:50
LoL
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portugeezer 1 Jun 2008, 22:51
your polish you never went to school.
Parent
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darnok 1 Jun 2008, 22:52
I LoLd once again.
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portugeezer 1 Jun 2008, 22:53
your polish you dont have a sence of humor.
Parent
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darnok 1 Jun 2008, 22:58
I can't find the SENCE of your statements, this is for sure.
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wildcat 1 Jun 2008, 23:12
you are not polish and looks you dont know what google is.
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Jeti2 1 Jun 2008, 22:51
sinulle kostan

-.^
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Glad 1 Jun 2008, 22:53
just get to know what sin etc exacly are and u will now everything

http://upload.wikimedia.org/wikipedia/commons/2/24/Trigonometria_01a.svg

sinalpha=a/c
cosalpha=b/c
tanalpha=a/b
ctgalpha=b/a
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peoples 1 Jun 2008, 23:08
That's not exactly.
Parent
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xeoxis 1 Jun 2008, 22:54
Thats easy. But I forgot how to do it.
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finkregh 1 Jun 2008, 23:09
maths serious business!
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b 1 Jun 2008, 23:46
Serious Business is Serious.
Parent
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tactics 1 Jun 2008, 23:40
Well, you have it wrong in the first place...
sohcahtoa
o = opposite
a = adjacent
h = hypotenuse
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jezix 1 Jun 2008, 23:49
really simple and easy pneumonic:

silly old harry (sin: opposite/hypotenue)
caught a harring (cos: adjacent/hypotenue)
trawling off america (tan: opposite/adjacent)

is this what you meant?
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nebu 1 Jun 2008, 23:49
izi bash :/
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