f(x)=ln(8-(x-2))=ln8+ln(1+(x-2)/8)因为：1/(1+x)=1-x+x^2-x^3+...+(-1)^n*x^n n=0,1,2...积分：ln(1+x)=x-1/2x^2+1/3x^3-1/4x^4+...+(-1)^n/(+1)n*x^(n+1) n=0,1,2...=∑(-1)^n/(n+1)*x^(n+1) n=0,1,2...则,ln(1+(...