From Math Queen.

In this math video I (Susanne) explain how to calculate this expression with Sigma and factorial. In 2020, a fast-food chain challenged people with a math expression, promising a free burger if you could solve it. Let’s take a look at the puzzle and work it out together! Mathematics explained.

00:00 Intro – Free Burger
1:21 Factorial
6:01 The sum Sigma
9:56 See you later!

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#free #burger #maths