求下列不定积分:
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求下列不定积分:
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int dfrac (2x+3)({x)^2+3x-10}dx
int dfrac (2x+3)({x)^2+3x-10}dx;;
求不定积分int dfrac (x{e)^3x+(x)^3ln x}(x)dx.求不定积分
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2.求下列不定积分:-|||-(1) int dfrac (dx)({x)^2};-|||-(2) int xsqrt (x)dx; 2.求下列不定积
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【例8】求不定积分int(arctan x)/(x^3)dx.【例8】求不定积分$\int\frac{\arctan x}{x^{3}}dx$.
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求下列不定积分:-|||-int dfrac (2cdot {3)^x-5cdot (2)^x}({3)^x}dx =
2.计算下列不定积分:(9)int dfrac (x{e)^arctan x}({(1+{x)^2)}^dfrac (3{2)}}dx.2.计算下列不定积分:(