martinezs2123 martinezs2123
  • 13-03-2018
  • Mathematics
contestada

if f(x)=2x and g(x)=x^2-1 which statement is true?
A. (f*g)(x)=2x^2 -1
B.(f*g)(x)=2x(x^2-1)
C.(g*f)(x)=4x-1
D.(g*f)(x)=4x^2-1

Respuesta :

carlosego
carlosego carlosego
  • 27-03-2018
For this case, the first thing we must do is multiply both functions to obtain the desired result.
 We have then:
 f (x) = 2x
 g (x) = x ^ 2-1
 Multiplying we have:
 (f * g) (x) = (2x) * (x ^ 2-1)
 Answer:
 
The following statement is correct:
 B. (f * g) (x) = 2x (x ^ 2-1)
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