1st Fundamental Theorem of Calculus PROOF | Calculus 1 | jensenmath.ca

Here is a proof of the first fundamental theorem of calculus which says that the derivative of the integral of f(t)dt from a to x is equal to f(x). The proof involves the formula for a derivative from first principles, the mean value theorem of integrals and also the squeeze theorem. Enjoy!
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[@patricefrederick5226]

clearest explanation yet! after many tries on many other sites I think I get it and I'm a 82yo guy.🤓

[@lilotosan4363]

@jensenmath mannnn u should’ve done this at the beginning of the semester man ;( would’ve helped alot

[@baigsaba]

Can you check your website. It doesn’t open anymore.