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Sir please help me in finding the integral of ∫ x2(x4 +4)dx/(x2+4)
Simply divide the numerator by denominator to get x^4-4x^2+20-80/(x^2+4)Now use formula ∫x^ndx= x^(n+1)/(n+1)For ∫dx/(x^2+4), put x= 2tany, and you are done
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