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I was wondering if anyone here can help me with the following question.

lim 1 - cos(x³ sin x) / x^6 sin² x

x->0

I have tried multiplying the top and the bottom by 1 + cos(x³ sin x), so I can get

(sin²(x³ sin x) / x^6 sin² x) * 1 / 1 + cos(x³ sin x)

I get stuck there. I don't know what to do next. Any help would be great thanks.

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# Finding limit help.

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