∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=
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∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=
∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=
∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=
∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=
∫[1/(1一X^2)][ln(1十X)/(1一X)]dX=
∫X/[X十根号(X^2一1)]dX=
函数f(x)=ln(x十1)一2/x的零点所在的大致区间是
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