heysorryguys
heysorryguys heysorryguys
  • 03-02-2019
  • Mathematics
contestada

Find the domain of the following expression:
1/(√x)-2

Respuesta :

CalaverEsc
CalaverEsc CalaverEsc
  • 03-02-2019

The domain of this function is going to be all of the real POSITIVE numbers EXCEPT when the denominator equals 0, because you can't divide by 0, therefore:

(√x) - 2 = 0

(√x) = 2

x = 2^2

x = 4


Therefore, the domain is all of POSITIVE real numbers EXCEPT 4

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