find the domain of the function f(x)= x
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x^2 - 9
1
Expert's answer
2011-12-15T07:11:01-0500
all real number without -3 and 3. Why? our function is rational function so its domain is all real numbers without zeros of denominatorю so we must find zeros of x^2-9 so x^2-9=0 so x^2=9 so x=3,x=-3.
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