Use the Table to evaluate each expression. x | 1 2 3 4 5 6
f | 6 4 4 1 6 4
g | 5 5 2 1 4 3

a). f(g(1))
b). g(f(1))
c). f(f(1))
d). g(g(1))
e). (gof)(3)
f). (fog)(6)

Explain the concept and show step-by-step solution.