two large numbers of the fibonacci sequene are f 50= 12586269025 and 51=20365011074 what is the approximate value of the quotient f61/f60
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OpenStudy (anonymous):
a1.618
b0.618
c2.618
d2
e3.142
OpenStudy (campbell_st):
well find the ratio of \[\frac{f_{51}}{f_{50}} = \]
you can check it
the sequence is
1, 1, 2, 3, 5, 8, 13, 21, so what is the ratio of 21/13 is it close to 13/8
and then compare it to \[\frac{f_{51}}{f_{50}} = \]
OpenStudy (anonymous):
how do i find the ratio
OpenStudy (campbell_st):
its just a fraction
13/8 = 1.625
21/13 = 1.61538
so what is
12586269025/20365011074
I'd expect it's getting close to 1.608
OpenStudy (anonymous):
i got 0.618033988749895
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OpenStudy (campbell_st):
oops should be the other way around
20365011074/12586269025
OpenStudy (anonymous):
yep thnx so the answer should be B
OpenStudy (anonymous):
?
OpenStudy (campbell_st):
did you recalculate it...?
OpenStudy (anonymous):
recalculate 20365011074/12586269025
yep
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OpenStudy (campbell_st):
as the recalculation gives
1.61803
so which is a good choice...