Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyThe number of words that can be written using all the letters of the word "$IRRATIONAL$" is
- A$\frac{10 !}{(2 !)^{3}}$
- B$\frac{10 !}{(2 !)^{2}}$
- C$\frac{10 !}{2 !}$
- D$10 !$
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