NCERT Example 12 - Permutations and Combinations
Question: Find n if (i) ⁿP₅ = 42·ⁿP₃, (ii) ⁿP₄/(ⁿ⁻¹P₃) = 5/4, with n > 4.
Answer: (i) n = 10; (ii) n = 10.
Full step-by-step NCERT solution with diagrams on Something by Zero.
Question: Find n if (i) ⁿP₅ = 42·ⁿP₃, (ii) ⁿP₄/(ⁿ⁻¹P₃) = 5/4, with n > 4.
Answer: (i) n = 10; (ii) n = 10.
Full step-by-step NCERT solution with diagrams on Something by Zero.