First, write the value(s) that make the denominator(s) zero. Then solve the equation.
+ 
= 
A. x ? -1, 1; {2}
B. No restrictions; {1}
C. x ? -1; {1}
D. x ? -1, 1; ?
Answer: D
Mathematics
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< 
A. 
B. 
C. 
D. 
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Simplify.
A. 13 B. 84 C. 14 D. Not a real number
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In how many ways can we select a committee of two men and two women from a group composed of five men and four women?
A. 60 B. 62 C. 70 D. 57
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