Ex 6.3,8 - Chapter 6 Class 11 Permutations and Combinations

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Ex 6.3, 8 How many words, with or without meaning, can be formed using all the letters of the word EQUATION, using each letter Exactly once? Number of letters in word EQUATION` = 8 n = 8 If all letters of the word used at a time r = 8 Different numbers formed = nPr = 8P8 = 8!/(8 8)! = 8!/0! = 8!/1 = 8! = 8 7 6 5 4 3 2 1 = 40320

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo