Q16 of 39 Page 1

Find:

Given:


Let u = x2 du = 2x dx



By using partial fraction;




When u = −1; A = 1


1 = A(-1 + 2)2 + 0


A = 1


When u = −2; C = −1


1 = C(-2 + 1)


-C = 1


C = -1


By considering the constants on both sides;


1 = 4A + B + C


B = −2





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