Odpowiedzi

2009-11-06T19:42:30+01:00
S₁₀=341
q=2

Sn=a1*[(1-q^n) /(1-q)]
341=a1*[(1-2¹⁰)/(1-2)]
341=a1*[(1-1024)/-1]
341=a1*[-1023/-1]
341=a1*1023 /:1023
a1=341/1023
a1=⅓