lim(x→0)((sin(x∧2)╱(sinx)∧2))
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lim(x→0)((sin(x∧2)╱(sinx)∧2))
lim(x→0)((sin(x∧2)╱(sinx)∧2))
lim(x→0)((sin(x∧2)╱(sinx)∧2))
显然在x趋于0的时候,
由重要极限可以知道,lim(x->0) sinx/x=1,即sinx等价于x,
所以同理
x^2也趋于0,那么sin(x^2)等价于x^2,
于是
lim(x->0) sin(x^2) /(sinx)^2
=lim(x->0) x^2 /x^2
=1
故此极限值为 1
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