The book A Course in Mathematical Analysis volume 1 was written by author Edouard Goursat Here you can read free online of A Course in Mathematical Analysis volume 1 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Course in Mathematical Analysis volume 1 a good or bad book?
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The iden tity assumed may therefore be written in the form r. R + D or, simplifying the left-hand side, -1 _ Cx + D 2(1 + x 3 ) ~ 1 + x 2 It follows that C = and 7) = 1/2, and we have, finally, 1 1 1 1 T" A / ~t "I \ . ^ / V 1-. - 11 */ ( nr* \ 1 ^ *^ -L V t !/ -Ly Trl*^ ^^ / \ 1^ / which gives rfa; 1, (x - 1\ 1 V, 104] RATIONAL FUNCTIONS 211 Note. The preceding method, though absolutely general, is not always the simplest. The work may often be shortened by using a suitable device. Let us cons...ider, for example, the integral dx 2 - 1)" If n > 1, we may either break up the integrand into partial frac tions byliieans of the roots + 1 and 1, or we may use a reduction formula similar to that for /. But the most elegant method is to make the substitution x = (1 -f )/(! 2), which gives 4* 2dz dx = (!-*) (I-*) /7 O /"* /1 ~\2 2 (* - 1)- = 4"- J " * rf * Developing (1 z) 2n ~ 2 by the binomial theorem, it only remains to integrate terms of the form Az* t where \L may be positive or negative. 104.
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