lim 1/n(sinπ/n+sin2π/n+.+sinnπ/n) n 趋向于正无穷
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lim1/n(sinπ/n+sin2π/n+.+sinnπ/n)n趋向于正无穷lim1/n(sinπ/n+sin2π/n+.+sinnπ/n)n趋向于正无穷lim1/n(sinπ/n+sin2π/n+
lim 1/n(sinπ/n+sin2π/n+.+sinnπ/n) n 趋向于正无穷
lim 1/n(sinπ/n+sin2π/n+.+sinnπ/n) n 趋向于正无穷
lim 1/n(sinπ/n+sin2π/n+.+sinnπ/n) n 趋向于正无穷
见图片
cosπ/n(sinπ/n+sin2π/n+.+sinnπ/n)=1/2(sin0+sin2π/n+sinlim 1/n(sinπ/n+sin2π/n+.+sinnπ/n)=limM/n=cos(π/2n)/[n
lim 1/n(sinπ/n+sin2π/n+.+sinnπ/n) n 趋向于正无穷
lim i/n(sinπ/n+sin2π/n+.+sinnπ/n) n 趋向于正无穷
当n趋近于无穷,[sinπ/n+sin2π/n+……+sin(n-1)π/n]/n的极限怎么求?有人说lim[sinπ/n+sin2π/n+...+sin(n-1)π/n]/n=∫sinxdx(对0到π求定积分)是可以直接代入的吗?还有类似的式子吗?
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