Question

for the pair od functions, f(x)=x^2 and g(x)=x+5, find the following

(a).(f*g)(x) (b).(f*g)(4) (c).(g*f)(x) (d).(g*f)(4)

Answer 1

i ll solve one, see if you get the concept and can solve the others,

f*g means in the function f instead of x, put g so

(f*g)(x) = g(x)^2 which means (x+5)^2 .. get it?