1.

equalsA. xtan−1 (x + 1) + CB. tan−1 (x + 1) + CC. (x +1) tan−1 x + CD. tan−1x + C

Answer»

equals




A. x
tan−1 (x + 1) + C



B. tan
1
(x + 1) + C



C. (x +
1) tan−1 x + C



D. tan−1
x
+ C



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