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F(1) equals 160 and f(n+1)=-2 F(n), what is f(4)

1 Answer

5 votes

Answer:-1280

Explanation:


f(n+1)=-2*f(n)\\\\f(1)=160\\f(2)=-2*160=-320\\f(3)=-2*(-320)=640\\\\\boxed{f(4)=-2*640=-1280}\\

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