Find the domain of the rational function.f(x) = 

A. all real numbers
B. {x|x ? 0, x ? 1}
C. {x|x ? -1, x ? 1}
D. {x|x ? -1, x ? 1, x ? -6}


Answer: C

Mathematics

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A. - 
B. - 
C.
D. - 

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A. 44 B. -44 C. 10 D. -10

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Solve the rational equation. = 

A. {-5, 0, 5} B. {-25, 25} C. {-5, 5} D. ?

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Complete the identity. +  = ?

A. -2 tan2 x B. sin x tan x C. 1 + cot x D. sec x csc x

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