Find the exact value of the indicated trigonometric function of ?.sec ? =  , ? in quadrant IVFind tan ?.

A. - 
B. - 
C. - 
D. - 


Answer: A

Mathematics

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Fill in the blank(s) with the appropriate word(s).

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Simplify the complex rational expression.

A.
B.
C.
D.

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Use the union rule to answer the question.If n(A) = 24, n(B) = 69, and n(A ? B) = 81; what is n(A ? B)?

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