lim2^nsin(x/2^n),n→无穷大,
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lim2^nsin(x/2^n),n→无穷大,lim2^nsin(x/2^n),n→无穷大,lim2^nsin(x/2^n),n→无穷大,n→无穷大,则x/2^n→0.则sin(x/2^n)等价于x/
lim2^nsin(x/2^n),n→无穷大,
lim2^nsin(x/2^n),n→无穷大,
lim2^nsin(x/2^n),n→无穷大,
n→无穷大,则x/2^n→0.则sin(x/2^n)等价于x/2^n
所以 lim 2^n·sin(x/2^n) = lim 2^n·(x/2^n)
= x
lim2^nsin(x/2^n),n→无穷大,
两道求极限的高数题第一题lim2^nsin(x/2^n) n趋近于无穷(x为不等于零的常数)第二题limsin (x^n)/(sinx)^n (mn为正整数)
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lim2∧nsin(1/2)∧n,n趋近于负无穷是应该是0啊.为什么书上说的都是趋近无穷,应该分正负,这样就没有极限,左右极限不相等.
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