Indefinite Integration

Find:

    \[\int \frac{2x}{\left(1+x\right)\left(1+x^{2}\right)^{2}}\,\textr,{d}x\]

Source: March, H.W., and Wolff, H.C. (1917). Calculus. New York: McGraw-Hill. (Illustration 4, p. 215-216)

Author: ascklee

Dr. Lee teaches at the Wee Kim Wee School of Communication and Information at the Nanyang Technological University in Singapore. He founded The Mathematics Digital Library in 2013.

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