Trigonometry and Limits: limit of sin(x)/x as x goes to 0

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In this video I show a geometric proof of this very useful limit of sin(x)/x as x goes to 0. I will use this in later videos to prove many trig derivatives and integrals.

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Limits and Trigonometry

Limits - lim sinx - x as x - 0 Resized AI.jpg

A Simple Proof of the Following Limit

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Thus we have:

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