00:01
Hello, students, we are asked in the question, find the number of distinguishable permutation of letters of words.
00:08
So this is the letter of words, right? so basically we need to find number of permutation right here.
00:16
So let's start with our answer.
00:17
What we are given right here, we are given a word of letters, which is c -h -a -d -h -o -c -h -h -e -h -h -e -h -h -e.
00:31
Let's number of letters in the word is 1, 3, 4, 5, 6, 7, 8, 9, 10.
00:43
So 13 words total and number of same letters.
00:54
So these are many.
00:55
So let's start with our c.
00:57
So c are basically how many? 1 and 2.
01:01
If i talk about h, h are 3 and if i talk about a, a is basically 2...