e^x limit for real numbers: /watch/4OV4RHwk-MHk4
Euler's formula for the complex exponential can be proved in many different ways, such as with Taylor series. Here we find Euler's identity using a limit equation for e^x and the polar form of complex numbers!
Calculus Problems playlist: /playlist/PLug5ZIRrShJGFne7YhMi-4eYsUKzkITao
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Music: OcularNebula - The Lopez