Answered

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

Please help!

Sagot :

konrad509
[tex]f(2)=16+2\cdot2=20\\ f(3)=20+2\cdot3=26\\ f(4)=26+2\cdot4=34[/tex]
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