## Lecture 5 Class 11 Maths Chapter 7

The pain you feel today will be the strength you feel tomorrow. Lecture - 5 Chapter 7 Permutations and Combinations NCERT Miscellaneous Exercise Question 1. How many words, with or without meaning, each of 2 vowels and 3 consonants can be formed from the letters of the word DAUGHTER ? Question 2. How many words, with or …

## Lecture 4 Permutations and Combinations

"Pain is temporary. Quitting lasts forever." – Lance Armstrong Lecture - 4 Chapter 7 Permutations and Combinations Meaning of Combination, how combination is different from permutations, derivation of rule for combinations through permutations, Shortcuts and special cases of combinationsNCERT Exercise 7.4Question 1. If , find Question 2. Determine n if(i). (ii). Question 3. How many chords can be drawn through …

## Lecture 3 Chapter 7 Class 11 Maths

"Everything you’ve ever wanted is on the other side of fear." — George Addair Lecture - 3 Chapter 7 Permutations and Combinations Number of Permutations when an alphabet repeat Example 14. Find the number of different 8-letter arrangements that can be made from the letters of the word DAUGHTER so that (i) all vowels occur together …

## Permutations and Combinations Lecture 2

Focus on your goal. Don’t look in any direction but ahead. Lecture - 2 Chapter 7 Permutations and Combinations NCERT Exercise 7.3Meaning of Permutations, Derivation for rule of PermutationsQuestion 1. How many 3-digit numbers can be formed by using the digits 1 to 9 if no digit is repeated?Question 2. How many 4-digit numbers are there with …

## Lecture 1 Permutations and Combinations

Look in the mirror. That’s your competition. Lecture - 1 Chapter 7 Permutations and Combinations NCERT Exercise 7.1Fundamental Principle of CountingQuestion 1. How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that (i) repetition of the digits is allowed? (ii) repetition of the digits is not allowed?Question 2. How …