Question

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Diketahui f(x) = 2x+5 dan g(x)= x-1/x+4, x ≠ -4 maka(fog)(1=)

Answer 1

f(x) = 2x+5

g(x) = (x-1)/(x+4)

(fog)(1) = 2(((1)-1)/((1)+4))+5

           = 2(0)/(5)+5

           = 0/5+5

           = 0+5

           = 5