How to Find a Definite Integral using Riemann Sums and the Limit Definition: Quadratic Example

In this video we go through all the steps of evaluating a definite integral using the limit process. The example chosen for this video is a quadratic with three terms. We look at the definite integral of x^2 + 2x - 5 from 1 to 4. This is not the hardest example but it's also not the easiest. I hope this is helpful.

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[naimas]

I love this style of teaching! Providing baby steps (basic math) and explaining how you simplified things in detail makes a big difference for me.

[tonyayad]

I know this video is two years old and there are a ton of comments but the way you worked this out was amazing. I have hated this Riemann guy for the past 3 months but you made it too easy. Thank You The Math Sorcerer!!!

[jaydee]

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[betsualuna]

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[tmann]

Just felt like reviewing Riemann sums 😊 I don’t want that skill to go away!

[LucasDimoveo]

Perfect timing. I'm officially learning integrals now!

[vladus]

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[danielshin]

The trick of dividing 27/n^3 * n(n+1)(2n+1) towards the end has been the answer I was looking for, Thank you

[rinuya]

This video is also perfectly applicable for any function of higher degree x, given that you are provided the formula for the sum of i^x. Amazinigly explained, thank you!

[akosk]

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[stevebob]

Thanks for walking through this. I totally relate to messing up the basic addition at the end too.

[david.hilbert]

Perfect time. I'm learning Riemann Integral with a perfect man of Mathematics !

[dingfro]

I've got an exam in an hour and this video felt like it helped a lot, lets hope it goes well

[hakimi]

u helped me understand riemann sum, thank you so much!!

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[thejuicedorange]

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[Monica-inmk]

thank you this video saved me to understand this topic!