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Sagot :

Réponse :

bonjour

3²=9

7²=49

B=1/2×(2+2/2)=1/2×3=3/2

C=1/2×(3/2+2/3/2)=1/2×(3/2+4/3)=1/2×17/6=17/12

D=1/2×(17/12+2/17/12)=1/2×(17/12+24/17)=1/2×577/204=577/408

E 1/2×(577/408+2/577/408)=1.414213

et 1.414213²=1.999998

Explications étape par étape

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