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A sequence is defined recursively by f(1)=16 and f(n)= f(n-1)+2n. Find f(4)

A sequence is defined recursively by f(1)=16 and f(n)= f(n-1)+2n. Find f(4)
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A sequence is defined recursively by f(1)=16 and f(n)= f(n-1)+2n. Find f(4)

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User John Vasiliou
by
8.4k points

1 Answer

3 votes
Hi,

f(1)=16
f(2)=f(1)+2*2=16+4=20
f(3)=f(2)+2*3=20+6=26
f(4)=f(3)+2*4=26+8=34

answered
User Mohamed Sahir
by
7.4k points
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