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Which of the Following Expressions Is Equivalent To $\frac { \cot 3 x } { \sec 3 x }$

Question 28

Multiple Choice

Which of the following expressions is equivalent to $\frac { \cot 3 x } { \sec 3 x }$ ? (x ? (?/3) n,where n is a whole number) ?

A) -3 sec x - sin x
B) csc 3x - sin 3x
C) csc 3x + sin 3x
D) -3 csc x + sin x
E) - csc x -3 sin x

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