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Charlydu31
@Charlydu31
April 2019
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Svp j'y arrive vraiment pas c'est un devoir de troisième. Merci de votre aide par avance
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telephone16
Exercice 98
A = (2/3/ 8/7) : (-7/6 +3/4)
A = (2/3 X 7/8) : (-7/6 +3/4)
14/24 : (-28/24 +18/24)
14/24 ; ( -10/24)
14/24 X -24/10
336/240 = 112/80 = 56/40 = 28/20 = 14/10
B = (5/11 -5/8) X (33 -3/8)
(40/88 -55/88) X ( 264/8 -3/8)
-15/88 X - 261/8
+ 3915/704
C =
3 -5/3 +2/5
=
45/15 -25/15 +6/15
= +
26/15
= 26/15 X 30/13 = 780/195 = 156/39
1/2 +1/3 -2/5 15/30 + 10/30 -12/30 13/30
52/ 13
D = 2/3
-3/2 +2/7
5 -2/7
2/3
-21/14 + 4/14
= 2/3
-17/14
=
28/42 - 51/42
=
-23/42
= -23/42 X 7/33 =-161/1386
35/7 -2/7 33/7 33/7 33/7
- 23/198
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charlydu31
June 2021 | 0 Respostas
c'est le c) et le d) du 35,36 et 37. Il faut factoriser les expressions. je vous remercie par avance de votre aide
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Charlydu31
April 2019 | 0 Respostas
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Charlydu31
April 2019 | 0 Respostas
merci de m'aider , c'est urgent pour lundi
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Charlydu31
April 2019 | 0 Respostas
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A = (2/3/ 8/7) : (-7/6 +3/4)
A = (2/3 X 7/8) : (-7/6 +3/4)
14/24 : (-28/24 +18/24)
14/24 ; ( -10/24)
14/24 X -24/10
336/240 = 112/80 = 56/40 = 28/20 = 14/10
B = (5/11 -5/8) X (33 -3/8)
(40/88 -55/88) X ( 264/8 -3/8)
-15/88 X - 261/8
+ 3915/704
C =
3 -5/3 +2/5 = 45/15 -25/15 +6/15 = + 26/15 = 26/15 X 30/13 = 780/195 = 156/39
1/2 +1/3 -2/5 15/30 + 10/30 -12/30 13/30
52/ 13
D = 2/3 -3/2 +2/7
5 -2/7
2/3 -21/14 + 4/14 = 2/3 -17/14 = 28/42 - 51/42 = -23/42 = -23/42 X 7/33 =-161/1386
35/7 -2/7 33/7 33/7 33/7
- 23/198