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Mathematics, 27.11.2020 04:30 reecedstceklein

The sequence {an} is defined by a1=2, and an+1=12(an+2an),
for n⩾1. Assuming that {an} converges, find its limit.

limn→∞an=

Hint: Let a=limn→∞an. Then, since an+1=1/2(an+2/an), we have a=1/2(a+2/a). Now solve for a

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The sequence {an} is defined by a1=2, and an+1=12(an+2an),
for n⩾1. Assuming that {an} conver...
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