Réponses

  • Utilisateur Brainly
2013-06-17T21:08:51+02:00

√(2+√(1+√(4+√(21+√(15+1)))))

=√(2+√(1+√(4+√(21+4))))

=√(2+√(1+√(4+5)))

=√(2+√(1+3))

=√(2+2)

=2