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Class 11
Maths :-NCERT Solutions - Permutations And Combinations.

Page No 141:
Question 2:
Is 3! + 4! = 7!?


Answer:


3! = 1 × 2 × 3 = 6
4! = 1 × 2 × 3 × 4 = 24
∴3! + 4! = 6 + 24 = 30
7! = 1 × 2 × 3 × 4 × 5 × 6 × 7 = 5040
∴ 3! + 4! ≠ 7!


NCERT Maths Class 11

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