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a fost răspuns

1 la a doua plus 2 la a doua plus 3 la a doua plus 4 la a doua plus 5 la a doua plus 6 la a doua

Răspuns :

1 la a doua = 1
3 la a doua = 9
4 la a doua = 16
5 la a doua = 25
6 la a doua =36
adunate: 26+25+36=51+36=87

[tex] {1}^{2} + {2}^{2} + {3}^{2} + {4}^{2} + {5}^{2} + {6}^{2} = \\ \\ 1 + 4 + 9 + 16 + 25 + 36 = 91[/tex]

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