williamfarwell3 williamfarwell3

24-07-2017
Mathematics

contestada

A sequence is defined recursively using the formula f(n+1)=-0.5f(n). If the first term on the sequence is 120, what is f(5)

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konrad509 konrad509

24-07-2017

[tex]f(n+1)=-0.5f(n)\\ f(1)=120\\\\ f(2)=-0,5\cdot120=-60\\ f(3)=-0,5\cdot(-60)=30\\ f(4)=-0.5\cdot 30=-15\\ f(5)=-0.5\cdot(-15)=7.5 [/tex]

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haileeee12 haileeee12

17-11-2019

F(n+1)=-0.5f(n) 120 f (5)

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