• 2022-06-03
    lim((x+2)/(X-1))^x,x趋近于无穷,求极限
  • (x+2)/(x-1)=1+3/(x-1)令1/a=3/(x-1)x=3a+1且a趋于无穷所以原式=lim(1+1/a)^(3a+1)=lim[(1+1/a)^a]^3*(1+1/a)=e^3*1=e^3

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