Question 1 Report
Resolve \( \frac{3}{x^2+x-2} \) into partial fractions
1x+1+1x−2
Answer Details
3x2+x−2 3 x 2 + x − 2 = 3(x−1)(x+1) 3 ( x − 1 ) ( x + 1 ) Ax−1 A x − 1 + Bx+2 B x + 2 A(x + 2) + B(x - 1) = 3 when x = 1, 3A = 3 → → a = 1 when x = -2, -3B = 3 → → B = -1 3 = 1 - 1 = 1x−1+1x+2
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