Question

given f(x)=x^2=8 and g(x)=x-1/x find (g of f)(-4)

Answer 1

f(x)=x.2 or x^2=8 :s

Answer 2

x^2

Answer 3

?

Answer 4

joe something looks funny about your question

Answer 5

joseph*

Answer 6

g(f(x))=(x^2-1)/x^2

((-4)^2-1)/(-4)^2

15/16

Answer 7

my bad *f(x)=x^2+8

Answer 8

too bad, i did wrong question :p

Answer 9

(x^2+(8-1))/((X^2)+8)

(16+7)/(16+8)

23/24