Subfactorial, Leftfactorial, Derangement , Left /Sub Factorial

preview_player
Показать описание
Subfactorial, Leftfactorial, Derangement , Left /Sub Factorial

Hello dear students Welcome to Maths is Easy. We have shared a video whereby you may get information about Subfactorial, Leftfactorial & Derangement. Topic covered in this video
* what is Derangment
* what is leftfactorial/ subfactorial
* Mathematical definition
*Examples

Please watch and share other related videos:
Double Factorial

Conic section Introduction

Differential Equations Introduction

Matrices Class12

For conceptual method of making factors click the link

Introduction of Quadratic Equations

Nature of Roots Geometrical Interpretation

How to prove Algebraic Identity

Super Fast trick for pair of linear equations

Vedic Maths Trick

Increasing decreasing functions

Similar Topics Covered Under this Video is :-
:- ZERO DOUBLE FACTORIAL, not equal to 1??
:- A Beautiful Double Factorial Identity
:- Sub Factorial Left Factorial
:- sub factorial, double factorial mathematical

#Subfactorial #Leftfactorial #MathsisEasy

Follow me via my Facebook page

Join our Facebook group

For all my resources subscribe to this channel
Рекомендации по теме
Комментарии
Автор

Wow that's why I'm ur big fan, u r amazing

seematiwarijee
Автор

tx a lot ur method is easy and clear inspite of material difficulty

fadihodroj
Автор

Awesome. I learnt something new. I have a question: Is there a generalised equation to find sub factorial of a real number and/or a complex number?

ickquux
Автор

Great video ma’am but there is one mistake in using second formula the function is of greatest integer function so we can’t take 9 there and the second formula can be [n!/e +1/2]. Kindly do correct me if I am wrong.

-PiyushJi
Автор

should be (n-1)[!(n-2)+!(n-1)]
no factorial beside the first n-1

ravenarcilla