Proof – Derivative of Sin(x) | JK Math

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How to Prove That The Derivative of Sin(x) is Cos(x)

In this video we look at the proof for the derivative of sin(x) using the limit definition of a derivative.

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Video Chapters:
0:00 Step 1 – Limit Definition of a Derivative
0:51 Step 2 – Addition Identity for Sin(x)
2:01 Step 3 – Simplifying
5:53 Step 4 – Special Trig Limits
6:59 Step 5 – Final Solution
7:45 Outro

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