Question

∫((x³ - 3x + 7)/(x⁴ + 4))dx is equal to

(A) x²/2 + 7/2ln(x² + 4) + c

(B) x²/2 + 7/2tan^-1(x/2) - 7/2ln(x² + 4) + c

(C) - x²/2 + 7/2tan^-1(x²/2) + 7/2ln(x² + 4) + c

(D) x/2 + 7/2tan^-1(x/2) + c

Answer 1

Answer is (B) x²/2 + 7/2tan^-1(x/2) - 7/2ln(x² + 4) + c