Question

if the first three fibonacci numbers are given as x1=1, x2=1 and ,x3=2, what is the value of n for which xn + xn+1=55

Answer 1

Answer:

The value of n for given Fibonacci series is 27  

Step-by-step explanation:

Given as :

For first three Fibonacci numbers

$x_1$ = 1

$x_2$ = 2

$x_3$ = 3

So , for the equation

$x_n$ + $x_(n+1)$ = 55

So , from series $x_n$  = n

And  $x_(n+1)$ = n + 1

So,  n + ( n + 1 ) = 55

Or,   2 n + 1 = 55

Or,   2 n = 55 - 1 = 54

∴  n = $\frac{54}{2}$ = 27

Hence The value of n for given Fibonacci series is 27   Answer

Answer 2

Answer:

8

Step-by-step explanation:

Finished