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16 September, 04:06

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

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  1. 16 September, 04:25
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    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
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