求极限,当x趋向于0,lim(1-cosx/2)x/(tanx-sinx),

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求极限,当x趋向于0,lim(1-cosx/2)x/(tanx-sinx),求极限,当x趋向于0,lim(1-cosx/2)x/(tanx-sinx),求极限,当x趋向于0,lim(1-cosx/2)

求极限,当x趋向于0,lim(1-cosx/2)x/(tanx-sinx),
求极限,当x趋向于0,lim(1-cosx/2)x/(tanx-sinx),

求极限,当x趋向于0,lim(1-cosx/2)x/(tanx-sinx),
lim(x→0)[(1-cosx╱2)x╱(tanx-sinx)] =lim(x→0)[╱(tanx-sinx)] =lim(x→0)[(x╱8)╱{sinx(1-cosx)╱cosx}] =lim(x→0)[xcosx╱4sinx] =lim(x→0)[cosx╱4] =1╱4