SOLUTION: The range of the function f: N→N defined by f(x)= (-1)^x-1

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Question 758242: The range of the function f: N→N defined by f(x)= (-1)^x-1
Found 2 solutions by stanbon, tommyt3rd:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The range of the function f: N→N defined by f(x)= (-1)^(x-1)
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(-1)^(even natural number) = 1
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(-1)^(odd natural number) = -1
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Range = {-1,1}
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Cheers,
Stan H.
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Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming you mean N to be the natural numbers i.e. {1,2,3,...} then
ranf={1}