I am trying to solve a few problems here. Any help on anyone of the following would be appreciated. Please show your work.

tan(2x) + sin(2x) / 2cos(x^2)

2cos(pi / 4 + x)cos(pi /4  x )

sin(3x)  3sin(x) / cos(3x) + 3cos(x)
I am trying to solve a few problems here. Any help on anyone of the following would be appreciated. Please show your work.
tan(2x) + sin(2x) / 2cos(x^2)
2cos(pi / 4 + x)cos(pi /4  x )
sin(3x)  3sin(x) / cos(3x) + 3cos(x)
Whoa!
on #3, do you mean sin(3x) + 3cos(x)  (3sin(x)/cos(3x)), or (sin(3x)  3sin(x)) / (cos(3x) + 3cos(x))
LOL
I am bad at math, so I hope someone can help you, but I had to laugh at this particular quote… lol
That is a classic Math related classroom quote…
Ok, Sorry to post that, but I couldn’t help it…
(Forgive Me?)
sin(3x)  3sin(x) / cos(3x) + 3cos(x)
Let me try writing it over:
sin3x  3sinx / cos3x + 3cosx
Hope this helps
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?