Ex: formula puteri, formule analiza financiara, inmultirea radicalilor exercitii rezolvate
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Siruri - exercitiu rezolvat 5

Avem sirul:

1/2, 2/3, 3/4, 4/5, 5/6, ….. an

Sa se afle termenul general an = ?


Rezolvare:

1 / 1+1 = 1/2
2 / 2+1 = 2/3
3 / 3+1 = 3/4
4 / 4+1 = 4/5
5 / 5+1 = 5/6
.
.
.
n / n+1 = an

deci =>