Does anybody know an easy way to work out trigonometry?

Question

its GCSE thing!

Answer 1

trigonometry becomes easy if you study
study , practice, learn and enjoy
that's the secret

Answer 2

A guide to help you review trigonometry. I assume you're already familiar with the basic concepts, and just need to have things cleared up or refreshed; if you've never seen trig before, this sheet will probably only be helpful in conjunction with a class.

The Basic Idea
Start out by considering a right triangle: that is, a triangle with one 90o angle. The angle that we care about is one of the other ones, which we'll label with the Greek letter q. (Everyone always labels angles with Greek letters. Why? One loyal reader tells me this is done in honor of Pythagoras.) We're going to look at the sides: the big one, opposite the right angle, we call the hypotenuse. The other two don't have special names, but one is adjacent to q and one is opposite q, so those will do. In the triangle below, for instance, the side opposite q has length 2 (inches, or meters, or whatever). The side adjacent to q has length . The hypotenuse, therefore, must have length 4 by the Pythagorean theorem.


Now, we're going to start by defining the sine of q (written "sin q") as the length of the opposite side, divided by the length of the hypotenuse; so we'll say that sin 30o = (2 divided by 4) = 1/2. You might well ask why we would give a special name to such a thing. I'll be talking soon about how it can be practical and useful, but the key point to understand is that the sine of q depends only on q; it does not depend on the specific triangle. If you change the size of the triangle I drew up there, but leave the angles the same, the lengths of the sides will change, but the ratio sin q = opp/hyp will remain the same. So sin q gives us a way of representing the fact that all triangles that have the same angles, will have the same side ratios.

Answer 3

Know your subject. Memorize key identities. Know the unit circle. Memorize the 30-60-90 and 45-45-90 trianle relationships. Study and practice.

Answer 4

yep
sohcahtoa

then all you need to do is know which sides and angles your working with and then use the formula that e.g. sin=opp/hyp
on your calculator is your working out and angle you need it to the minus 1

Answer 5

It depends what type, if you would like to specify, email me at [e-mail], or Im me at Cadague4 for AIM

Answer 6

Practice.
Practice.
Practice.

Answer 7

Wotcha stuck on?What sort of level maths are we talking about here?

Answer 8

Yes I do.