Question 276355
I do not understrand how to write the espression as an integer. The problem is: 
csc^2 3alpha - cot^2 3alpha 
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I'm not sure what you mean by "write...as an integer."
This can be simplified:
csc^2 3alpha - cot^2 3alpha 
= 1/sin^2 - cos^2/sin^2
= (1-cos^2)/sin^2
= sin^2/sin^2
= 1