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`int(x^(4))/(x^(2)+1)dx` का मान ज्ञात कीजिए ।

Answer» `int(x^(4))/(x^(2)+1)dx=int((x^(4)-1)+1)/(x^(2)+1)dx`
`=int(x^(2)-1+(1))/(x^(2)+1)dx`
`=intx^(2)dx-int1dx+int(1)/(x^(2)+1)dx`
`=(x^(3))/(3)-x+tan^(-1)x+c`


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