Question

The fibonacci sequence is defined recurively by the following
a1=1
a2=1
an=an-1-an-2
A.true
b.false

Answer 1

next term is not the difference, its the sum.,
the correct one is :
an=an−1+an−2

Answer 2

so its false

Answer 3

yep, false

Answer 4

let bn=bn-1,b1=1Then b7 equals
A.28
B.7
C.42
D.7+6

Answer 5

\(b_n\)
is what ?

Answer 6

on the n+b the n-1 should be slightly below the b but idn how to type it like that

Answer 7

is
\(\Large b_n = n+ b_{n-1}\)
?

Answer 8

yes,sorry

Answer 9

we know b1 =1
find b2
plug in n=2 in that equation

Answer 10

ok

Answer 11

whats the answer?

Answer 12

could you find b2 ?
then find b3, b4...and so on till b7

Answer 13

couldnt find it

Answer 14

what have you tried ?

Answer 15

is it bn=2+1?

Answer 16

b2 =2+1 = 3
yes

now find b3

b3 =3 + b2 = 3+3 = ...


similarly, find b4,b5,..

Answer 17

would the answer be A

Answer 18

wait ..... wouldnt it be b7=6+1=7?

Answer 19

no

Answer 20

\(\Large b_7 = 7+b_6 = 7+21=28\)

Answer 21

thats what i said the first time b7=28

Answer 22

Fibonacci sequence (as others have said) progresses as
1
1
2
3
5
8
13
21
34
55
http://1728.org/fibonacci.htm

Answer 23

and thats correct :)

Answer 24

whats the first 5 tems of the fibonacci sequence generated by the fibonacci sequence rule below
a1=3
a2=-2
a3=an-1+an-2
A.3,-2,1,-1,0
B.-2,3,1,4,5
C.3,-2,1,3,4
D.3,-2,5,3,8

Answer 25

I have no idea. I know about the Fibonacci Sequence but not when they start adding new rules to it.

Answer 26

i cant figure it out

Answer 27

i have no idea