Question

Consider the function \(f(x) := exp(x+a)exp(-x)\)
b) Show that \(f\) is constant and determine this constant

Answer 1

when you multiply exponents you add the indiices so it becomes f(x)=exp(a), the exp(a) is a real number hence f is constant and equals exp(a)

Answer 2

Posideon can you apply what you say pls, i am not good at math.. or is it already solution?

Answer 3

that is the solution.

Answer 4

ok thank you very much..