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March 28, 2017

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Posted by on .

I think this is a easy trick question, so I probably know the answer but I just wanted to double check.
What is the domain and range of the function f(x) = 3^x

Find the f^-1 and its domain and range?

Thanks for your help.

  • Algebra - ,

    domain: any real number
    range: any real number > 0

    for the domain of the inverse function, since you interchange the x and the y,
    the range of the old becomes the domain of the inverse, and vice versa.

  • Algebra - ,

    Thank you - that is exactly what I thought!

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