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Originally Posted by nb45ti
I am trying to solve a few problems here. Any help on anyone of the following would be appreciated. Please show your work.
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Could you elaborate on what problems you are trying to solve ...
A trigonometric equation can be expressed in a great variety of forms (infinity, if you consider each sin[f(x)+2pi*n]) unique). There are wonderful trig formulas that can change your equations to equations involving higher powers, or lower powers, sin x or sin nx, etc. and etc. to your heart's content -- and each has its purpose and use, depending on the problem at hand. But you don't have an equation here to solve (e.g., sin2x/3cosx=5) ... so are you trying to reduce, expand, evaluate, enjoy?