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Recursive function f(n+1)=1/3 f(n) if f (3)=9 what is f(1)

Recursive function f(n+1)=1/3 f(n) if f (3)=9 what is f(1)
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Recursive function f(n+1)=1/3 f(n) if f (3)=9 what is f(1)

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User Mushy
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1 Answer

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f(n+1)=(1)/(3)f(n)\\ f(n)=3f(n+1)\\\\ f(2)=3\cdot9=27\\ f(1)=3\cdot27=81
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User Osg
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