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Today's Problem


Solve one problem each day

Monday, 27 september 2010

7 7 1 = 5

Proposed by lucipetOffline
(19 comments)5.403 times displayed

Adaugati simboluri matematice intre cifrele de mai jos,pentru a obtine o egalitatea adevarata.

                                    7   7   1=5

Verificati rezultatul cu calculatorul din Windows.


Bonus :  Lucas & Fibonacci

Daca F:  1, 1, 2, 3,  5,  8, 13, 21, ...    si    L:  1, 3, 4, 7, 11, 18, 29, 47, ...
                                               
sunt sirurile lui Fibonacci si Lucas unde

F(n) = F(n-1)+F(n-2) cu  F1 = 1 ,F2 = 1   si
L(n) = L(n-1)+L(n-2)  cu  L1 = 1 ,L2 = 3 ,      definim sirul

   FL:  1, 3, 8, 21, 55, 144, 377, 987, ...

Care e regula de generare a elementelor sirului FL (termenul general  FL(n) ) ?


Tags: 7, , 7, , 1, =, 5
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