Triganometry

[Edward lV]

Can someone please explain this to me? It was one of the only maths things I didnt get.

Just a quick guide will do.
Thanks.

[Copperknickers II]

Not sure how deep and explanation you want. I have just started it .

Afaik, it is the use of ratios to find out the lengths of sides of right-angled triangles. If you know an angle and a side, you apply the ratio (Sin, Cos or Tan depending on the position) to the angle and voila.

[Simetrical]

Trigonometry involves learning how to use the trigonometric functions: sine (sin), cosine (cos), tangent (tan), cosecant (csc), secant (sec), cotangent (cot). They have a variety of analytic relationships to one another, the trigonometric identities, which normally must be memorized. Their applications to geometry are extensive and fundamental: they permit you to easily perform many calculations that would otherwise be difficult or impossible. Solid knowledge of trigonometry is essential for further studies in mathematics, physics, engineering, certain types of programming/computer science, and a variety of related subjects.

But trig is usually taught in year-long, or at least semester-long, courses. It's not really practical for us to just explain it all to you in a thread. You have to get a textbook and go through the problems. If you have difficulty with a specific problem, you could ask that here and get help. (It might be best to scan the problem, especially if it involves diagrams.)

[Edward lV]

Ok, thanks. Ill look it up.

[Reidy]

Hey there's no need - Simetrical is the encylopaedia of all knowledge.

But yeah, your original question was lacking in context. Do you mean its something you're stuck on right now, or that trigonometry is just 'something you've always wondered about'?

[Edward lV]

Something I never got, I thought it might be useful to know.

[Hounf of Culan]

Well first of all its trigonometry so thats a good place to start.