Question 205808: I need help with this question please. Let f(x)= sqrt of x and let g(x)= 1/x-2. Find the g of f(x) [or the g(f(x)] and then state the domain. Thanks for helping in advance. Sorry this question is not from a textbook or workbook.
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! f(x) = sqrtx,,,,,,,g(x) = 1/(x-2)
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gof(x) = 1/{(sqrtx)-2}
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DOMAIN is all Real Numbers EXCEPT when deninator = 0
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sqrt(x) -2 =0
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sqrtx =2
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squaring,,,x=4
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Domain is all Real Numbers,,,except x=4
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