niyo123
niyo123
02-03-2017
Mathematics
contestada
if f(1) = 3 and f(n) = -2f(n-1)+1 what is f(4)
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treypad2702
treypad2702
27-04-2017
If f(1)=1 then f(f(1))=1 but f(f(1))=3, so f(1) isn't equal to 1If f(1)>2 then f(2)>3, so f(f(1))>3, but f(f(1))=3, so f(1) isn't greater than 2Thus f(1)=2, and f(2)=3f(3)=f(f(2))=6, and f(6)=f(f(3))=9, so 9 > f(5) > f(4) > 6, so f(5)=8 and
f(4)=7.
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