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Winjeheyler
@Winjeheyler
April 2019
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Ecrire sous la forme a racine b, avec a nombre entier relatif et b nombre entier positif le plus possible:
a. 9 racine 7 - 2 racine 28 - 5 racine 63=
b. racine24 + racine 54 - racine 150=
c. 2 racine 50 - racine 98 - racine 18 =
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isapaul
Verified answer
Bonsoir
V veut dire racine
a)
9V7 - 2V28 - 5V63
= 9V7 - 2V(4*7) - 5V(9*7)
= 9V7 - 2(V4)(V7) - 5(V9 )(V7)
= 9V7 - 2(2)(V7) - 5(3)(V7)
= -10V7
b)
V24 + V54 - V150
= V(4*6) + V(9*6) - V( 25 * 6)
= (V4)(V6) + (V9)(V6) - (V25)(V6)
= 2V6 + 3V6 - 5V6
= 0
c)
2V50 - V98 - V18
= 2(V25)(V2) - (V49)(V2) - (V9)(V2)
= 10V2 - 7V2 - 3V2
= 0
1 votes
Thanks 3
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Verified answer
BonsoirV veut dire racine
a)
9V7 - 2V28 - 5V63
= 9V7 - 2V(4*7) - 5V(9*7)
= 9V7 - 2(V4)(V7) - 5(V9 )(V7)
= 9V7 - 2(2)(V7) - 5(3)(V7)
= -10V7
b)
V24 + V54 - V150
= V(4*6) + V(9*6) - V( 25 * 6)
= (V4)(V6) + (V9)(V6) - (V25)(V6)
= 2V6 + 3V6 - 5V6
= 0
c)
2V50 - V98 - V18
= 2(V25)(V2) - (V49)(V2) - (V9)(V2)
= 10V2 - 7V2 - 3V2
= 0