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Language/Type: C# recursion

Write a recursive method named SumUpTo that accepts an integer parameter n, where SumUpTo(n) returns: 1 + 1/2 + 1/3 + 1/4 + ... + 1/n .

For example, the call of SumUpTo(2) should return 1.5. You should return 0.0 if n is 0, and you should throw an ArgumentException if n is less than 0.

Method: Write a C# method as described, not a complete program or class.

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