jejdnekwbs
jejdnekwbs
21-05-2018
Mathematics
contestada
For f(x)=2x+1 and g(x)=x^2-7, find (fog)(2)
Respuesta :
ktreyb
ktreyb
21-05-2018
(f o g)(x) = f(g(x))
f(g(x)) = 2(x² - 7) + 1
= 2x² - 14 + 1
= 2x² - 13
(f o g)(2) = f(g(2))
2(2)² - 13
2(4) - 13
8 - 13
- 5
(f o g)(2) =
- 5
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