How to give an epsilon-delta proof of this limit statement?

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Although I know a couple of proofs of the statement $$ \lim_{x \to 0 } \frac{\sin x}{x} = 1, $$ I would like to be able to come up with a proof using the definition of the limit (i.e. an $\epsilon$-$\delta$ proof). Here $x$ is in radians of course.