## Factorials | Algebra | Chegg Tutors

Factorials are often used in algebra, combinatorics, and Algebra, in particular, for solving permutation and combination problems. Factorials are products indicated by an exclamation point. For instance, “five factorial” is written as “5!” and means 5X4X3X2X1 = 120. In general, n! is the product of descending natural numbers where n! = n(n-1)(n-2)XXX2X1. An important fact to remember is that the factorial of 0 is 1 (that is, 0! = 1). There are also factorials of real and complex numbers using other formulas such as the gamma function.

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About Tam N., Algebra tutor on Chegg Tutors:

University of Texas at Dallas, Class of 2019

Computer Engineering major

Subjects tutored: Trigonometry, PSAT, ACT, Geometry, Algebra, Computer Science, Discrete Math, Basic Math, Pre-Algebra, Linear Algebra, MIPS, SAT, Calculus, and Pre-Calculus

TEACHING EXPERIENCE

I often tutor my peers especially in math courses. When I was in high school, I was a volunteer tutor who helped my fellow students. I also used to be a certified swim instructor for Life Time Fitness and I am currently a swim coach for a local swim team. These positions have allowed me to develop teaching abilities that have transferred over to professional tutoring. These abilities include communication, patience, and understanding. I enjoy teaching, whether I was just volunteering or whether it was my job.

EXTRACURRICULAR INTERESTS

I am a current undergraduate student at The University of Texas at Dallas majoring in Computer Engineering. My GPA has placed me on the Dean’s List. Outside of school, I enjoy swimming, mixed martial arts, and judo. I was a varsity swimmer in high school and was a certified swim instructor and coach at Life Time Fitness. Now I currently coach a local city team in the summer. I have taken up mixed martial arts and judo as a hobby.

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