求極限limn→∞(2^(1/2)*2^(1/4)*2^(1/8)*...*2^(1/2n))
求極限limn→∞(2^(1/2)*2^(1/4)*2^(1/8)*...*2^(1/2n))
求極限:limn→∞(2^(1/2)*2^(1/4)*2^(1/8)*...*2^(1/2n))
是求,當n趨近于無窮時,根號2*2開4次方*2開8次方*...*2開2n次方的極限
怎么算得呢?
求極限:limn→∞(2^(1/2)*2^(1/4)*2^(1/8)*...*2^(1/2n))
是求,當n趨近于無窮時,根號2*2開4次方*2開8次方*...*2開2n次方的極限
怎么算得呢?
數(shù)學人氣:813 ℃時間:2020-08-10 19:23:40
優(yōu)質(zhì)解答
1/2+1/4+1/8+.1/2^n =1/2*(1-(1/2)^n)/(1-1/2) =1-(1/2)^n limn→∞(2^(1/2)*2^(1/4)*2^(1/8)*...*2^(1/2n)) =lim2^(1/2+1/4+1/8+.+1/2n) =lim2^(1-(1/2)^n) =2^(1-0) =2 我認為最后一項應(yīng)該是:...*2^(1/2^n)...
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