httpsenwikipediaorgwikiDoublefactorial Using the Principle o

https://en.wikipedia.org/wiki/Double_factorial

Using the Principle of Mathematical Induction prove that 1 . 1! + 2 . 2! + 3 . 3! +... + n . n! = (n + 1)! - 1 for all n GE 1. Use the Principle of Mathematical Induction to prove that any integer amount of postage from 18 cents on up can be made from an infinite supply of 4-cent and 7-cent stamps. Give the recursive definition with initial conditions of the function/(n) = 5n + 2, n = 1, 2, 3, Write a pseudocode of a procedure to compute n!! (double factorial function more info here) recursively. if n is even

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