I do not understand when to use eitherSin, Cos, Tan or their transverse on a problem.
Consider the definitions of the different functions and figure out which one fits the situation you have.
thats what it amounts to, use the one the is best defined in the situaiton
|dw:1342391041375:dw| you tend to be given a problem that asks you to find one of these values
sin = y/r cos = x/r tan = y/x
I have the definitions of them, but a problem like this gives answers with all of them and I dont know whcih on it is
thats just a picture, whats the question that goes with it?
What is the length of the piece of wood required to make the side AB of the roof truss?
so we are given "r" and "t" and asked to find a missing side; its either going to be cos or sin
since AB is next to, or adjcent, to the angle, that sounds like a cosine to me
cos(45) = (AB)/12
there is of course another way to view the problem, but it doesnt give you the practice for your sincostans
|dw:1342391297676:dw|
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