codycooper0401 codycooper0401
  • 21-01-2021
  • Mathematics
contestada

If (x)=
X-2
and d(x) = x + 3, what is the domain of (cd)(x)?

If x X2 and dx x 3 what is the domain of cdx class=

Respuesta :

eudora eudora
  • 26-01-2021

Answer:

Option (2)

Step-by-step explanation:

Given functions are,

c(x) = [tex]\frac{5}{x-2}[/tex]

d(x) = x + 3

Equation of the composite function will be,

(cd)(x) = c(x) × d(x)

          = [tex]\frac{5}{(x-2)}\times (x+3)[/tex]

          = [tex]\frac{5(x+3)}{(x-2)}[/tex]

This function is defined only when denominator is not equal to zero.

(x - 2) ≠ 2

Therefore, for real numbers except x = 2 will be the domain of the composite function.

Option (2) will be the answer.

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