lim x趋近于无穷 ((x-1)/(x+1))^(0.5x+4)
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lim x趋近于无穷 ((x-1)/(x+1))^(0.5x+4)
lim x趋近于无穷 ((x-1)/(x+1))^(0.5x+4)
lim x趋近于无穷 ((x-1)/(x+1))^(0.5x+4)
=lim[1-2/(x+1)]^(0.5x+4)
=lim e^[(0.5x+4)ln(1-2/(x+1))]
=lim e^[-2*(0.5x+4)/(x+1)]
=lim e^-1=e^-1
原式等于(1+-2/x+1)∧((x+1)/2)*(-x-8/x+1)=e∧-1=1/e∧((x+1)/2)*(-x-8/x+1)这步是怎么倒出来的呀?
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lim x趋近于无穷 ((x-1)/(x+1))^(0.5x+4)