Question: If (x3 + 1) cose de = fi(x) sine + f2(x) cosr + C, then fi(x) + f2(r) is equal to A. x3 + 3x2


If (x3 + 1) cose de = fi(x) sine + f2(x) cosr + C, then fi(x) + f2(r) is equal to A. x3 + 3x2 + 6x + 5. C. x3 + 3r2 - 6x + 5. B. x3 + 3x2 - 6x -5. D. x3 - 3x2 - 6r + 5
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