alleryThe notation n factorial represents the product of the first n:
ANumerical nouns
BNatural numbers
CNautical numbers
DNotional numbers
Answer & Solution
Correct answer: B. Natural numbers
1. Writing out a long descending product quickly becomes cumbersome.
2. A single symbol stands in for the whole product.
3. The notation n factorial represents the product of the first n natural numbers.
4. So five factorial is one times two times three times four times five.
_Source: syllabus Mathematics, Ch 6 'Permutations and Combinations'_
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