Odpowiedzi

2010-04-11T18:29:36+02:00
S₅ = 5 [1-(½)⁵ / 1-½]= 5 [1-1/32 / ½] = 5 [31/32 / ½]= 5 *62/32= 310/32 = 9 22/32 = 9 11/16
2010-04-11T18:33:03+02:00

S=5* 1-(0,5)^5 / 1-0,5 = 5* 1-0,03125/0,5= 5*1,9375= 9,6875