Evaluate the following integral:

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2x = A(x2 + x + 1) + (Bx + C)(x – 1)
= (A + B)x2 + (A – B + C)x + (A – C)
Equating constants,
A – C = 0
Equating coefficients of x
2 = A – B + C
Equating coefficients of x2
0 = A + B
On solving,
We get
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