Write a new factorial function using pattern matching

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Reference no: EM132200057

Write this function in a pure functional style only: no assignment statements, no explicit loops, and no arrays!

Here are the problem you have to solve:

Write a new factorial function using pattern matching which is tail-recursive (i.e. it doesn't cause the stack to grow and there are no pending operations).

You will need an internal helper function.

Reference no: EM132200057

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