tikallove
tikallove tikallove
  • 22-08-2019
  • Mathematics
contestada

If c(x) - x-3 and d(x) = x + 3, what is the domain of (cd)(x)?

Respuesta :

Cricetus
Cricetus Cricetus
  • 25-08-2019

Answer:

All Real numbers

Step-by-step explanation:

c(x)= x-3

d(x) = x+3

dc(x)= (x-3)(x+3)

[tex](a+b)(a-b)=(a^2-b^2)[/tex]

[tex]dc(x) = (x^2-9)[/tex]

[tex]x^2-9[/tex] is defined for all values of x , And hence the domain of cd(x) will be set of all Real Numbers

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