SOLUTION: I have a teacher that is horrible. No one (literally) in our class can understand, because he doen't teach... I need to know the beasics of trigonometry and how you know which side

Question 425985: I have a teacher that is horrible. No one (literally) in our class can understand, because he doen't teach... I need to know the beasics of trigonometry and how you know which sides you need to use for the equations (sin,cos,tan). I reallyyy need help, thanks.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
There's also the option of teaching yourself; I had to teach myself algebra. Or hire one of our tutors.

Anyway, the trigonometric functions can be defined using a right triangle, but this is not the universal definition since it is only defined on angles between 0 and . Here is the right triangle definition:

Here, the Greek letter represents an angle. We define the trigonometric functions as follows:
, ,
We also have trigonometric functions cosecant, secant, and cotangent. They are defined like this:
, , .
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