Simplify. Assume that all variables represent positive real numbers.-

A. - 
B. - 
C. - 
D. - 


Answer: A

Mathematics

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B. -  + i
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A. -9 B. 5 C. -15 D. -19

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A. 7.8 B. 0.78 C. 0.67 D. 0.078

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