Find the domain of the function (f/g) (x) given f (x) = x^2-4x-5 and g (x) = x^2-25

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Mathematics

Laci Taylor

26 October, 08:59

Find the domain of the function (f/g) (x) given f (x) = x^2-4x-5 and g (x) = x^2-25

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Lincoln Haney · Answer 1

F + g) (x) = f (x) + g (x); (f - g) (x) = f (x) - g (x) : (f · g) (x) = f (x) · g (x) ..., let f (x) = 5x+2 and g (x) = x2 - 1. 4. f (4) = 5 (4) + 2 = 22 and g (4) = 42-1=15 ... (fog) (x) = f [ g (x) ] = f [ 4x2 ] = sqrt (4.2) = 2 | x |; (gof) (x) = g [ f (x) ] = g [ s