Evaluate:
lim
I have been trying to solve this for 15 minutes but sin(sin(x))
part has me stuck.
My attempt:
I tried multiplying with x inside the \sin as \sin{(\frac{x\sin{x}}{x})}. No leads.
Answer
Use \sin(u)=u-\frac{u^3}{6}+\frac{u^5}{120}+o(u^6) (three times).
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