Overview of Summation Formulas

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Calculus: We review some basic summation formulas and rules for calculating Riemann sums. Over the range i from 1 to n, we state formulas for the sum of a constant r, i, i^2 and i^3. We review sigma notation and prove the rules for r, i and i^2. We also work out the special case of sum 1 to 4 of (i+1)^2 using our formulas.
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My teacher did not explain this at all and you did a great job of doing so. Thank you for this video.

phoenix
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Thank you so much. Have my final tomorrow and this helped a lot!

fb
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You're welcome! Glad to be of help. Math books are tough; they are typically geared for precision over exposition. - Bob

MathDoctorBob
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It was very easy to understand, thanks!

fuzzyip
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You're welcome, and thanks for the kind words! Ay! Riemann sums are hard enough when taught right. - Bob

MathDoctorBob
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If you are working with a formula, add zero in the form of (missing terms)-(missing terms). That is, use the formula as usual, but subtract the missing terms when done.

MathDoctorBob
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Finally understand induction... Thanks a ton!

riceay
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@janmichuk You're welcome! Hope the exam went well. - Bob

MathDoctorBob
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@PoppySeed84 Thanks! Good luck on exams. - Bob

MathDoctorBob