求lim(x→0)sinx^3/(sinx)^2的极限
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lim(X→0)sinx/ⅹ=1
lim(X→0)sinx∧3/x^3=1limsinxslim(x→0)sinx^3/(sinx)^2=sinx^3/x^3.x^3/(sinx)^2
=lim(X→0)x^2/(sin)^2.x
=lim(ⅹ→0)(x/sinx)^2.x
=1^2.0
=0
lim(X→0)sinx∧3/x^3=1limsinxslim(x→0)sinx^3/(sinx)^2=sinx^3/x^3.x^3/(sinx)^2
=lim(X→0)x^2/(sin)^2.x
=lim(ⅹ→0)(x/sinx)^2.x
=1^2.0
=0
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