Slightly Incorrect Ugly Mathematical Christmas T-Shirts: Part 2

Algebra II, Humor, Precalculus 1 Minute

This was another T-shirt that I found in my search for the perfect ugly mathematical Christmas sweater: https://www.amazon.com/Pascals-Triangle-Math-Christmas-shirt/dp/B07KJS5SM2/I love the artistry of this shirt; the “ornaments” at the corners of the hexagons and the presents under the tree are nice touches.

There’s only one small problem:

\displaystyle {8 \choose 3} = \displaystyle {8 \choose 5} = \displaystyle \frac{8!}{3! \times 5!} = 56.

Oops.

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Published by John Quintanilla

I'm a Professor of Mathematics and a University Distinguished Teaching Professor at the University of North Texas. For eight years, I was co-director of Teach North Texas, UNT's program for preparing secondary teachers of mathematics and science.

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One thought on “Slightly Incorrect Ugly Mathematical Christmas T-Shirts: Part 2”

  1. Pingback: Slightly Incorrect Ugly Mathematical Christmas T-Shirts: Index | Mean Green Math

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