^ does NOT mean "squared". ^ means "raised to the power of", and you have to supply number, as in "sin^2". You also need to provide an argument for your functions, such as or . Lastly, the standard abbreviation for the cosecant function is csc. Then, even if you had written your expression correctly and I'm going to go way out on a limb and assume that you meant:
There is nothing to prove. Did you leave out an equals sign somewhere? Did you leave out half of the problem? The whole thing makes no sense.
John
My calculator said it, I believe it, that settles it
