MHB Trig Angles: Equations & Solutions

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I need only equations on this one
 
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Abdullah Qureshi said:
I need only equations on this one

what "one"?
 
Trigonometry is a rather large section of Mathematics. What equations are you interested in? Please be specific or post a problem that you are working on.

-Dan
 

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Suppose ,instead of the usual x,y coordinate system with an I basis vector along the x -axis and a corresponding j basis vector along the y-axis we instead have a different pair of basis vectors ,call them e and f along their respective axes. I have seen that this is an important subject in maths My question is what physical applications does such a model apply to? I am asking here because I have devoted quite a lot of time in the past to understanding convectors and the dual...
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Thread 'What Exactly is Dirac’s Delta Function? - Insight'

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