B= (4/3 +1) × 15/28 C= 3/4 + 1/2 / 2/5 + 5/2 D= 15x10^-15×12×10^6 / 3×10^15x2x10^-23 E= 1/2 / 3- 7/10 F= (5/7)^2 - 2/7 G= 5/7 : 6/7-( 1/2 -1) H=(4/7 - 3/2) x (1
Mathématiques
3aurelieeee
Question
B= (4/3 +1) × 15/28
C= 3/4 + 1/2 / 2/5 + 5/2
D= 15x10^-15×12×10^6 / 3×10^15x2x10^-23
E= 1/2 / 3- 7/10
F= (5/7)^2 - 2/7
G= 5/7 : 6/7-( 1/2 -1)
H=(4/7 - 3/2) x (1/4÷6/7)
I= 5x10^-3 x6x10^5 / 1,5x10^-5
C= 3/4 + 1/2 / 2/5 + 5/2
D= 15x10^-15×12×10^6 / 3×10^15x2x10^-23
E= 1/2 / 3- 7/10
F= (5/7)^2 - 2/7
G= 5/7 : 6/7-( 1/2 -1)
H=(4/7 - 3/2) x (1/4÷6/7)
I= 5x10^-3 x6x10^5 / 1,5x10^-5
1 Réponse
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1. Réponse alae12
B= (4/3 +3/3)×15/28
=7/3 ×15/28
= 105/84
=5/4
C=3/4 +(1/2×5/2)+5/2
=3/4+5/2+5/2
=3/4+10/2
=20/4 +3/4
=23/4
E=1/2 -7/10
= (1/2 × 3/1) -7/10
=3/2 -7/10
=15/10 - 7/10
=8/10
= 4/5