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Express 1/(x(x+1)) as a difference of two simple fractions.
A2/x - 1/(x+1)
B1/x - 1/(x+1)
C1/x + 1/(x+1)
D1/(x+1) - 1/x
Answer & Solution
Correct answer: B. 1/x - 1/(x+1)
Since 1/x - 1/(x+1) = ((x+1) - x)/(x(x+1)) = 1/(x(x+1)), the first option is exact.
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