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Sagot :

Réponse:

Bsr, exercice 71: Écrivons chaque quotient sans radical au dénominateur.

A=2/√2

= 2×2/√2×2

= 22/(2)²

= 22/2

A=2.

B= 21/√7

= 21×7/√7×7

= 217/(7)²

= 217/7

B=37.

C=9/√3

= 9×3/√3×3

= 93/(3)²

= 93/3

C=33.

D=3/√5

= 3×5/√5×5

= 35/(5)²

D = 35/5

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