lim,x->0,(sin5x)分之(sin2x)=?

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lim,x->0,(sin5x)分之(sin2x)=?
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lim,x->0,(sin5x)分之(sin2x)=?
lim,x->0,(sin5x)分之(sin2x)=?

lim,x->0,(sin5x)分之(sin2x)=?
lim,x->0,(sin5x)分之(sin2x)
=lim,x->0,(5x)分之(2x)
=5分之2

原式=lim(sin5x/5x)/(sin2x/2x)*5/2
=1/1*5/2
=5/2

lim,x->0,(sin5x)分之(sin2x)
=lim,x->0 5x 分之 2x
= 2/5