Int log. Dx/sqrt(1+x^2). int x dx. logx2 -1/x+2/x2. logx+1 (x2-x-1/x+2).

Int log. Dx/sqrt(1+x^2). int x dx. logx2 -1/x+2/x2. logx+1 (x2-x-1/x+2).
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