Question

If m(x)=x+5/x-1 and n(x)=x-3, which function has the same domain as (mon)(x)?

o means composition in (mon)

Answer 1

do you know this rule for composition of functions ?

(f ° g)(x) = f(g(x))

Answer 2

f(g(x))=f(x^2)=x^2-7

Answer 3

so (m°n)(x) = m(n(x))

what mean that in equation of m(x) in place of x substitute the equation of n(x)

please post your work