(a) Express 3x- 32' + 20 +2 – 1 (* - 1)(2² +1) as a sum of rational functions of the form A, and B,r +C, (a,r + b,)" where A, B,, C3, a;, bi, c d, and e, are appropriate real numbers. Note: Factorise the rational function first. Do not calculate the constants Ai, B; and

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