Question

Definiti analitic (printr-o formula) functia care are urmatorul tabel de valori
VA ROG MULT URGENT DAU COROANA

Answer 1

$f_1(x)=\dfrac{x+1}{x+2},\;f_2(x)=2^x.$

Answer 2

  [tex] f:\mathbb{N}\longrightarrow \mathbb{Q}^*,\ \ f(x)=\dfrac{x+1}{x+2} \\\;\\ f:\mathbb{N}\longrightarrow \mathbb{N}^*,\ \ f(x)=2^x [/tex]