Jose M. Valdes Rodriguez

Ever since I was almost 6, I have had the question of why does zero factorial equal one. Thankfully, five years later, I decided to give my younger self some answers to this mystery. The proofs are divided into: Proof 1: Proof by division, which uses the definition of factorials and a specific pattern to prove that 0! = 1 Proof 2: Proof by permutations, by showing that there are n! was to arrange n objects, and using that to prove that 0! = 1 We'll also show, using these proofs, why -1! is not possible, and along the way, you'll enjoy some popcorn while I answer to my younger self's curious question Enjoy! Edit: I have a new website! Check it out here: https://sites.google.com/view/makingmatheasy/

Talk about the divergence and convergence of infinite series

How high can you count on an Abacus of 10 rows and 10 beads on each row

10 years old Jose explains indefinite integrals.

Jose at the age of 10 talking about functions and conic sections.

Jose at age 10 talks about definite integrals.

Jose at age 10 talking a bit about differentiation

Jose (age 9) finding the derivative using the product rule.