Réponses

2014-10-11T13:46:27+02:00


Salut,

voici le calcul.

f(√2) = (√2 + 2)² - 4

f(√2) = (√2)² + 2 * √2 * 2 + 2² - 4

f(√2) = 2 + 4√2 + 4 - 4

f(√2) = 4√2 + 2

A+