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dau coroana. problema de clasa 5.​

Dau Coroana Problema De Clasa 5 class=

Răspuns :

Răspuns:

Explicație pas cu pas:

1/3 + 1/3^2 + 1/3^3 + 1/3^4 + 1/3^5 + 1/3^6

1/3 ( 1+ 1/3 +1/3^2 + 1/3^3 + 1/3^4 + 1/3^5)
1/3 [1 + 1/3 (1 + 1/3 +1/3^2 + 1/3^3 + 1/3^4)
1/3( 1+ 1/3 ( 1+ 1/3(1 + 1/3 + 1/3^2 + 1/3^3)
1/3 (1+ 1/3 ( 1 + 1/3( 1+ 1/3 (1+ 1/3 + 1/3^2)
1/3 (1+ 1/3( 1+ 1/3 (1+ 1/3 ( 1+ 1/3( 1+1/3)
1/3 (1+ 1/3 ( 1+ 1/3 ( 1+ 1/3( 1+ 1/3 * 4/3)
1/3 (1+ 1/3 ( 1+ 1/3 ( 1+ 1/3 ( 1+ 4/9)
1/3 (1 + 1/3 ( 1+ 1/3 ( 1+ 1/3* 13/9)
1/3 ( 1+ 1/3 ( 1 + 1/3 ( 1+ 13/27)
1/3 (1 + 1/3 ( 1+ 1/3* 40/27)
1/3( 1+ 1/3 ( 1+ 40/81)
1/3 ( 1+ 1/3 * 121/81)
1/3 ( 1+ 121/243)
1/3* 364/243
364/729