find first 5 termms of the sequence, defined by a1=-1, an=an-1/n

Asked by  | 8th Aug, 2012, 10:36: AM

Expert Answer:

a1 = -1
an = an-1/n
 
Therefore,
a2 = a1/2 = -1/2
a3 = a2/3 = (-1/2)/3 = -1/6
a4 = a3/4 = (-1/6)/4 = -1/24
a5 = a4/5 = (-1/24)/5 = -1/120

Answered by  | 8th Aug, 2012, 02:20: PM

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