Using pseudo-code, describe a recursive algorithm to find n! mod m, when m, n ? z+.

Explanation:

A recursive algorithm has a terminating condition and a recursive rule.

The function "facMod" will terminate with an output of 0 if m ≤ n, because m would be a factor of n!. It will terminate with an output of 1 if n < 2.

Otherwise, it is the product mod m of n and the "facMod" of n-1.

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In this code, the If(a, b, c) statement returns b for a=true, otherwise it returns c. The Mod(a, b) statement returns a modulo b.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

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step-by-step explanation: