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Which sum of partial fractions equals 1/(x(x + 1))?
A1/x - 1/(x+1)
B1/(x+1) - 1/x
C2/x - 1/(x+1)
D1/x + 1/(x+1)
Answer & Solution
Correct answer: A. 1/x - 1/(x+1)
Combining 1/x - 1/(x + 1) gives (x + 1 - x)/(x(x + 1)) = 1/(x(x + 1)).
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