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Given f(x)=x^2-2 and g(x)= the square root of x-7, identify the composite function of g(f(x)) and it's correct domain
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Given f(x)=x^2-2 and g(x)= the square root of x-7, identify the composite function of g(f(x)) and it's correct domain

User Izzy Rodriguez
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g(f(x))=√(x^2-2-7)=√(x^2-9)\\\\ D:x^2-9\geq0\\ D:(x-3)(x+3)\geq0\\ D:x\in(-\infty,-3]\cup[3,\infty)
User Nico Albers
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