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Find the domain of each function

51. f(x)=5x+4
52. f(x) = x^2 +2
53. f(x) = x/x^2+1
54. f(x) = x^2/ x^2 +1

Find the domain of each function 51. f(x)=5x+4 52. f(x) = x^2 +2 53. f(x) = x/x^2+1 54. f-example-1
User Nordeast
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51. all real numbers
52. all real numbers
53. (-infinity, 0)(0,infinity)
54. all real numbers
User Kinshukdua
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