Question

A função de f: R R,e dada por f(x)=x+1—x determine f(a+1)

Answer 1

$f(x) = x + 1 - x \\ f(a + 1) = a + 1 + 1 - a + 1 \\ f(a + 1) = 1 + 1 + 1 \\ \boxed{\boxed{\boxed{f(a + 1) = 3}}}$

att. yrz