Question

if, g;R–»R defined by f(x)=x^2-1 and g(x)=x+4 respectively then find f+g(x)​

Answer 1

(f+g)(x) = f(x) + g(x)

F(x) = x² - 1

g(x) = x + 4

(F + g)(x) = x² - 1 + x + 4

= x² +x + 3

Hence obtained.