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Rawacasafi0713
@Rawacasafi0713
May 2019
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bonjour pouvez vous m'aider pour Comparez les deux nombres réels a=
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loulakar
Verified answer
Bonjour,
a = √(5) - 3
b = 2√5 - 2
a - b = √5 - 3 - 2√5 + 2
a - b = -√5 - 1
Ce qui veut dire que :
a - b < 0 puisque -√5 - 1 < 0
donc : a < b
2)
a = 14/16 et b = 22/7
a = (2x7)/(2x8)
a = 7/8
il faut mettre a et b sur le même dénominateur :
a = 49/56
b = 176/56
49 < 176 donc
a < b
2 votes
Thanks 1
rawacasafi0713
a= 14sur16 et b 22sur7
rawacasafi0713
s'il vous plait
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Verified answer
Bonjour,a = √(5) - 3
b = 2√5 - 2
a - b = √5 - 3 - 2√5 + 2
a - b = -√5 - 1
Ce qui veut dire que :
a - b < 0 puisque -√5 - 1 < 0
donc : a < b
2)
a = 14/16 et b = 22/7
a = (2x7)/(2x8)
a = 7/8
il faut mettre a et b sur le même dénominateur :
a = 49/56
b = 176/56
49 < 176 donc
a < b