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Riemann sum limit. In fact, we will interpret this limit as an integral. We will see the indeterminate form of 0+0+0+... doesn't necessary approach 1. This is actually the integral of sqrt(x) from 0 to 1 and we get 2/3 for the answer. If you would like more…

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Make the equation correct by adding one blue dot, or erasing one blue dot. A single dot changes everything!

Keep It 💯 Puzzle: 4 dots to make this true!
https://youtu.be/rHpG7uC9CKk

Sources
https://www.reddit.com/r/mathpuzzles/comments/88fcb2/one_of_the…

We will do the integral of sin(ln(x))/ln(x) from 0 to 1 by using Feynman's Trick (aka differentiation under the integral sign). This is also closely related to the Dirichlet Integral, which is the integral of sin(x)/x from 0 to inf.
For the complex exponential…

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Proof of L'Hopital's Rule (also spelled as L'Hospital's Rule) for the 0/0 indeterminate form.
For more calculus help, see my calculus tutorial channel: https://bit.ly/just_calc

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