PERMUTATIONS-AN INTRODUCTION

This video gives you an introduction to Permutations. The target audience could be Class11/12 mathematics students or anyone interested in Mathematics. The topic Permutations has applications in competitive examinations. You are introduced to permutation as an arrangement . The basic formulas to calculate nPr is shown. Few of the problems discussed are- In how many ways can 7 books be arranged on a shelf if 3 particular books always stand together? Find the number of 5 digit numbers with distinct digits. How many arrangements can be made with the letters of the word VOWELS if each word begins with S and ends with E? Online classes are also provided. You can register for the entire course or specific topics. You can contact me on mathmadeeasy22@gmail.com

Click to watch video.

MORE ABOUT PERMUTATIONS

Learn more about permutations and how to evaluate them using these techniques. A useful lesson for math students of class 11/12. A good foundation of permutations is useful in competitive exams.

Click to watch video.

CIRCULAR PERMUTATIONS

Learn what are circular permutations and how to evaluate them. Also learn how to evaluate permutations when clockwise and anticlockwise arrangements are indistinguishable.

Click to watch video.

WHAT ARE COMBINATIONS?

Learn about combinations and what distinguishes it from Permutations. Relevant formulas are illustrated through problems. A useful tool for mathematics students of Classes 11 and 12.

Click to watch video.

MIXED PROBLEMS ON PERMUTATIONS AND COMBINATIONS

Learn mixed problems in permutations and combinations. This is greatly useful for Class 11 and 12 Math, NCERT and ISC. You will learn how to combine permutations and combinations in solving problems. This lesson is the most crucial part on this course on Permutations and Combinations.

Click to watch video.

FORMULAS ON PERMUTATIONS AND COMBINATIONS

This video gives you a lot of formulas needed to solve problems on Permutations and Combinations. The target audience could be Class 11/12 Mathematics students or anyone interested in Mathematics. You will learn the formulas of n factorial, 0 factorial. Permutation of n objects taken r at a time. Permutations when objects are repeated and not repeated are given, The number of ways of arranging n people around a table-circular permutations are also given. Combinations-formulas are given -the number of ways of selecting r objects out of n objects. Online classes are also provided. You could register for specific topics or the entire course. For more details, you can contact me on mathmadeeasy22@gmail.com.

Click to watch video.

BINOMIAL THEOREM-AN INTRODUCTION

What is the Binomial Theorem? The Binomial Theorem shows you how to find the powers of binomial expressions like a+b,

a-b. Learn the basic formulas of Binomial Theorem and a few simple problems.

Click here for formulas.

BINOMIAL THEOREM-PROBLEMS

Watch this video to learn how to expand using Binomial Theorem. A number of useful formulas are mentioned in this video. Lean how to find the number of terms of a Binomial expansion.

Click here for video link

GENERAL TERM OF A BINOMIAL EXPANSION

Learn how to find the general term of a Binomial expansion. Notice how you can use this formula to find any term of an expansion. 

Click here for solved problems

MIDDLE TERM OF A BINOMIAL EXPANSION

You will learn how to calculate the middle term/terms of a Binomial expansion. Note that, when n is even, there are n+1 terms, hence one middle term. If n is odd, there are even number of terms. Hence there are 2 middle terms. You can view the formula and a solved problem by clicking on this link.

Click here for viewing the formula.

HOW TO FIND THE TERM INDEPENDENT OF X

2 types of problems are discussed here. Firstly, we learn to find the term independent of x, using the formula for the r th term of a binomial expansion. Then you learn how to find the r th term from the end in any binomial expansion. You will understand that it is as simple as finding the r th term from the beginning, that is, the rth term.

Click here for solved problems.

C