Evaluate the following integral:

Let
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1 = A(x4 + 1) + (Bx3 + Cx2 + Dx + E)(x)
Equating constants
A = 1
Equating coefficients of x4
0 = A + B
0 = 1 + B
B = – 1
Equating coefficients of x2
D = 0
Equating coefficients of x
E = 0
Thus,
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