fog is a notation used in dealing with the functions. Here f is an outer function and g is an inner function. Here the variable x is replaced by another variable function ie g(x). (fog)(x). Let me illustrate it with an example. Let f(x) = 2x-1 and g(x) = (x+5)/2. Find the function (fog)(x). Simplify your answer. read more
fog is a notation used in dealing with the functions. Here f is an outer function and g is an inner function. Here the variable x is replaced by another variable function ie g(x). read more