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Simplifying Expressions

Please give detailed explanation. Please see attached file for full problem description.


cos ( /2 - x) (csc x - sin x)

A). sin2x
B). -cos2x
C). cos2x
D). 1
E). None of the above


Solution Summary

An expression is simplified. The solution is detailed and well presented. The response was given a rating of "5/5" by the student who originally posted the question.