For the functions f(x)=?x-11 and g(x)=?11-x, find the functions f+g, f-g, fg, andThe domain off + g is {11}.(Use a comma to separa answers as needed.)What is the domain of f+g? Select the correct choice below and, if necessary, fill in the answer box to complete yoB. The domain of f + g is(Type your answer in interval notation.)The domain of f + g is Ø.(f- g)(x) =Determine the domain