lin趋近于一,sin(x-1)除以x平方减一,计算题,

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lin趋近于一,sin(x-1)除以x平方减一,计算题,lin趋近于一,sin(x-1)除以x平方减一,计算题,lin趋近于一,sin(x-1)除以x平方减一,计算题,lim(x->1)sin(x-1

lin趋近于一,sin(x-1)除以x平方减一,计算题,
lin趋近于一,sin(x-1)除以x平方减一,计算题,

lin趋近于一,sin(x-1)除以x平方减一,计算题,
lim(x->1) sin(x-1)/(x^2-1)
=lim(x-1->0) sin(x-1)/(x-1)*1/(x+1)
=lim(x-1->0) sin(x-1)/(x-1)*lim(x->1) 1/(x+1)
=1*1/2
=1/2