How many words, with or without meaning, can be formed using all the letters of the word equation
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Last updated at May 29, 2018 by Teachoo
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Ex 7.3, 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 |
