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Lucie0912
@Lucie0912
June 2021
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svp urgent les exercice 1 et 2 c'est noter pour demain
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winner123
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Bonsoir
J'espère que je recopie bien les signes.
Vérifie
car, sur fond bleu, c'est difficile à lire
M = 2/5 +4/3 +7/2 = 12/30 + 40/30 + 105/30 =
157/30
N = 2/3 +5/3 x 3/2 = 2/3 + 15/6 = 4/6 + 15/6 =
19/6
L = (-7/4 +1/2) + (2/7 +1/4) = (-7/4 + 2/4) + (8/28 + 7/28)
= -5/4 + 15/28 = -35/28 + 15/28 = - 20/28 =
- 5/7
P = -28/5 : (-2 +1/7) = -28/5 : (- 14/7 +1/7) = -28/5 : -13/7 = -28/5 x -7/13 =
196/65
inverse de M = 30/157
opposé de N = - 19/6
A = 3 x (-5)² +2 x (-4)^3
A = 3 x 25 + 2 x -64 = 75 - 128 =
- 53
B = 5² x 10^3 - 23 x 5^-1
B = 25 x 1000 -(23x 0.2)
B = 25 000 - 4.6 =
24 995.4
c = (7² +2^5) sur 3`^5 -2 x 9²
C = (49 + 32) : 243 - 162
C = 81 : 81
= 1
D = 15 x 10^6 sur 12 x 10 ^9
D = 1.25 x 10 ^-3
Encore une fois, vérifie les chiffres car très dur à déchiffrer
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Lista de comentários
Verified answer
BonsoirJ'espère que je recopie bien les signes.
Vérifie car, sur fond bleu, c'est difficile à lire
M = 2/5 +4/3 +7/2 = 12/30 + 40/30 + 105/30 = 157/30
N = 2/3 +5/3 x 3/2 = 2/3 + 15/6 = 4/6 + 15/6 = 19/6
L = (-7/4 +1/2) + (2/7 +1/4) = (-7/4 + 2/4) + (8/28 + 7/28)
= -5/4 + 15/28 = -35/28 + 15/28 = - 20/28 = - 5/7
P = -28/5 : (-2 +1/7) = -28/5 : (- 14/7 +1/7) = -28/5 : -13/7 = -28/5 x -7/13 = 196/65
inverse de M = 30/157
opposé de N = - 19/6
A = 3 x (-5)² +2 x (-4)^3
A = 3 x 25 + 2 x -64 = 75 - 128 = - 53
B = 5² x 10^3 - 23 x 5^-1
B = 25 x 1000 -(23x 0.2)
B = 25 000 - 4.6 = 24 995.4
c = (7² +2^5) sur 3`^5 -2 x 9²
C = (49 + 32) : 243 - 162
C = 81 : 81 = 1
D = 15 x 10^6 sur 12 x 10 ^9
D = 1.25 x 10 ^-3
Encore une fois, vérifie les chiffres car très dur à déchiffrer