Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
MediumHow many numbers can be formed using the digits $1, 2, 3, 4$ if repetition of digits is not allowed?
- A$^4P_4$
- B$^4P_1 + ^4P_2 + ^4P_3 + ^4P_4$
- C$^4P_1 + ^4P_2 + ^4P_3$
- D$^4P_3$
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