- Joined
- Aug 16, 2007
- Messages
- 149
I don't know if this is in the right place, but I have no idea how to do trigonometry( like cos? sin? tan? etc) and I'd just like to ask if someone could do a trigonometry tutorial somewhere?
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trigonometry tutorial
- Status
- Joined
- Dec 10, 2007
- Messages
- 65
trig need
hey, trig is easy. Im not really to sure what you need it for though, could you explain what you need trig for and it will be a whole lot easier to explain it to you then.
hey, trig is easy. Im not really to sure what you need it for though, could you explain what you need trig for and it will be a whole lot easier to explain it to you then.
- Joined
- Feb 22, 2006
- Messages
- 3,052
Understand this page (especially this part) and you'll pretty much get it a good portion of it:
http://www.sosmath.com/trig/Trig5/trig5/trig5.html
Also knowing how to convert to radians from degrees is important.
Degrees*pi/180 = radians, radians*180/pi = degrees
sinx is for the y axis, cosx is for the x axis, tan is sinx/cosx.
Soh Cah Toa:
In a right triangle, there are three sides, the hypotenuse, the opposite edge from the angle, and the side adjacent to the angle you're measuring (not the hypotenuse).
sinx = opp/hyp
cosx = adj/hyp
tanx = opp/adj
It gets more complex, but trig identities and understanding the unit circle and sin cos and tan are very essential.
--donut3.5--
http://www.sosmath.com/trig/Trig5/trig5/trig5.html
Also knowing how to convert to radians from degrees is important.
Degrees*pi/180 = radians, radians*180/pi = degrees
sinx is for the y axis, cosx is for the x axis, tan is sinx/cosx.
Soh Cah Toa:
In a right triangle, there are three sides, the hypotenuse, the opposite edge from the angle, and the side adjacent to the angle you're measuring (not the hypotenuse).
sinx = opp/hyp
cosx = adj/hyp
tanx = opp/adj
It gets more complex, but trig identities and understanding the unit circle and sin cos and tan are very essential.
--donut3.5--
- Status
