Evaluate the following expression.
?
cot2t (2 sec2t - 2)
?

A. 2
B. 0
C. 3
D. 4
E. 1


Answer: A

Mathematics

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A. 1:1 B. 1:3 C. 1:2 D. 2:1

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Simplify the radical expression. ? ?

A. ?
B. ?
C. ?
D. ?
E. ?

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Evaluate n C r using the formula from this section.


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Mathematics