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Integration and applications of integration — Question 1

QCAA 2020, Paper 1 · 1 mark

Q1 · 2020 · Technology-freeSimple familiar1 mark

QUESTION 1

The indefinite integral ∫3x−A1−x2 dx\displaystyle \int \frac{3x-A}{1-x^2}\,dx can be determined using the partial fractions −11+x+21−x\displaystyle -\frac{1}{1+x}+\frac{2}{1-x}.
The value of AA is
(A)
−3-3
(B)
−1-1
(C)
11
(D)
33
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