If f(x) = 2x + 3, & g(x) = (x - 3)/2, then what is the value of, fo(fo(go(go(fo(fo(go(go................(fo(fo(go(gof(x) )))).....)))))) ?  Choose the most appropriate option:
A) 3
B) 2
C) 9
D) 7
E) 1
f(x) = 2x + 3   g(x) = (x - 3)/2   gof(x) = 2x+3−32=x2x+3−32=x   gogof(x) = x−32x−32   fogogof(x) = 2(x−32)+32(x−32)+3 = 2x−6+622x−6+62 = x   fofogogof(x) = 2x + 3   This means, when we apply two times g(x) and two time f(x) on f(x) we get f(x). This pattern continues, Hence the answer is option (7).
<result>D</result>
If f(x) = 2x + 3, & g(x) = (x - 3)/2, then what is the value of, fo(fo(go(go(fo(fo(go(go................(fo(fo(go(gof(x) )))).....)))))) ?