The Factorial of an Integer Is the Product of That

question 17

Multiple Choice

The factorial of an integer is the product of that integer multiplied by all the positive non-zero integers less than that integer. So, 5! ! is the mathematical symbol for factorial) is 5 * 4 * 3*2*1. 4! is 4*3*2*1, so 5! could be written as 5*4!. So a recursive definition of factorial is n! is n*n-1) !, as long as n >1. 1! is 1. What is the recursive call for this function fact) ?

• A) factn)*n;
• B) factn-1)*n;
• C) n-1)*factn)
• D) factn-2)*n-1)

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