# In two weeks I have a goniometry test work and if I do not get 8 I stay seated, does anyone have study advice?

It’s probably too late, but try to make as many assignments as possible.Don’t look in the answers before you complete the sum. Ask fellow pupils for help. If you do not have a formula sheet, write the following formulas on a cheat slip, which you then do not use, but learn from your head:

1. [Math\\sin ^ 2 x + \\cos ^ 2 x = 1 [/math
2. [Math\\sin (\\frac 12 \\pi-X) = \\cos x [/math
3. [Math\\sin (-X) =-\\sin x, \\\\\\cos (-X) = \\cos x [/math
4. [Math\\tan x = \\frac {\\sin x} {\\cos x} [/math
5. [Math\\start {Align} \\sin (x + y) & = \\sin X\\cos y + \\cos x \\sin y \ \ \ \ \\cos (x + y) & = \\cos x \\cos y-\\sin x \\sin y\\end {align} [/math
6. Proof with 3 and 5: [Math \\sin (x + y) + \\sin (x-y) = 2 \ \ sin x \\cos y [/math
7. Find similar formulas for:
8. [Math\\sin (x + y)-\\sin (x-y) \ \ \ \ \\cos (x + y) + \\cos (x-y) \ \ \ \ \\cos (x + y)-\\cos (x-y) [/math
9. Find a formula for [Math\\sin A + \\sin b, [/math Use the result of 6.
10. [Matha \\sin x + b \\cos x [/math.

That is a tricky, which you have to fix by setting [Math\\cos z = \\frac a {\\sqrt{a ^ 2 + b ^ 2}}, \ \ \\sin z = \\frac B {\\sqrt{a ^ 2 + b ^ 2}} [/math

In addition, these formulas allow you to find the doubling formulas [math\\sin 2x, \ \ \\cos 2x [/math and [Math\\tan 2x [/math .

1 through 9 [math [/mathyou should know from your head (you should already know, but a man is never too old to learn) and also practice all sorts of applications.

A formula that is sometimes useful and not so obvious is 1 = sin squared x plus cos squared x. A form of the Pythagoras theorem.

I do not know you, so you are not sure how good you are in trigonometry and how much time you can invest etc.But, I have the following very sincere advice:

Exercise.

By practicing I mean that you first read an example from the book, then the book closes and tries it yourself.Try to summarize the important steps briefly, in your own words (with a matching drawing).

Then you make sums that match what you’ve just done.If a sum looks different from what you have just practiced, you should first ask yourself, whether it is possible to view the new problem of a 芒 鈧?虄other kant芒 鈧劉, so that it does match what you have practiced.

You should leave Extra-deepening sums alone at this stage.If you have that NL. Can not immediately, this leads to frustration. First, let’s think: those are for the 10. If you are going through exercise material, (remember to close the book), then I would once googling on other sums.

Besides practicing alone, it might also be an idea to look up a classmate with a similar problem.Avoid panic footballers, find someone who is well motivated. Try using each other’s method that you use to solve a sum to determine which technique you use and which things you may find difficult. Sometimes a simple observation is enough. Perhaps you are tackling the problems very differently and you come to an enlightening insight.

If you’re in need of some rules of thumb, or standard situations, learn from the head, preferably rules that you understand how they work, so you can apply them properly, and write them in the beginning of your test work at the top of your paper , the burden is already off your shoulders. Do not exaggerate the number of rules of thumb.This should not be a test work in itself.

At the test work you first read (diagonally) the assignments.The tasks you are sure to be able to start with. Those points are fixed inside. Don’t forget to write things up. Your teacher has nothing to do with a final answer. So you should at Gonio you often have to show that angles are equal to each other under a rule rather than assuming they have a certain size under a drawing. If you need to make a drawing, you make a quick sketch on the paper, but for the key you make a nice drawing. If you are short on time, you can always work a little less neatly (out of need).

I wish you luck.

Fight, give everything you have practice, pray to God, sleep well, make assignments be confident and do not make room for the negative

See which of your peers is good at Gonio.Ask him or her if you can study together on the upcoming test work. To get an eight you will really need to know your substance 100%. Make as many trials as you can find, and discuss your outcomes with the better performing student, or with your teacher. A lot of success!