Question: Question 5 - ( 1 0 points ) A sequence { a n } is defined recursively by a 1 = 2 , a 2

Question 5-(10 points)
A sequence {an} is defined recursively by a 1=2,a2=4 and an =an-1+2an-1 for n3. Prove
that an=2n for every positive integer n .
Question 5 - ( 1 0 points ) A sequence { a n } is

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