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(2/3)²+6.(2/3).(1/2)+(1/2)²=
(4/9)+(12/3).(1/2)+1/4=
(4/9)+2+(1/4)=
(4/9)+(8/4)+(1/4)=
(4/9)+(9/4)=
(16+81)/36=
97/36=2,69444....
(4/9)+(12/3).(1/2)+1/4=
(4/9)+2+(1/4)=
(4/9)+(8/4)+(1/4)=
(4/9)+(9/4)=
(16+81)/36=
97/36=2,69444....
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