• Raisonnement par récurrence. • Formule du binôme. • Suites à
BCP ST 1B
•
•
•
•
2×2
2×2
•
n
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
unn
2×2
unn
1
/
1
100%
