Răspunsuri

2014-01-11T14:34:04+02:00
Poi ca sa afli b4=(q la puterea n-1)*b1=q la puterea 3 *b1
q=ratia
q=b2/b1=(1/3)*1=1/3
b4=(1/3)³*1=1/27
b5=(1/3) la puterea 4*1=1/81
b12=(1/3)la puterea 11 *b1=1/3 la puterea 11