# A calculus problem by Hamza A

Calculus Level 2

$\displaystyle\lim _{ x\rightarrow 0 }{ \frac { x-\sin { x } }{ { x }^{ 3 } } }$

is in the form $\frac{A}{B!}$

where $A,B$ are positive coprime integers

then find $A+B$

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