原式=(1/2)∫[(1+x^2-1)/(1+x^2)]d(x^2)
=(1/2)∫d(x^2)-(1/2)∫[1/(1+x^2)]d(x^2)
=x^2/2-(1/2)ln(1+x^2)+C
求不定積分1+x^2分之x^3
求不定積分1+x^2分之x^3
數(shù)學人氣:670 ℃時間:2020-09-30 17:24:42
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