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mamouth
@mamouth
January 2021
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Bonsoir de l'aide svp merci beaucoup
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hoanganh
Rebonsoir voilà la réponse :
A = (10^15*10^2)/(10^3*10^7)
= (10^15+2)/(10^3+7)
= 10^17/10^10
= 10^17-10
= 10^7
B = 10^8/(10^11*10^5)
= 10^8/(10^11+5)
= 10^8/10^16
= 10^8-16
= 10^-8
C = (10^6*10^5)/(10^2*10^-3)
= (10^6+5)/'10^2+(-3))
= 10^11/10^-1
= 10^11-(-1)
=10^12
D = (10^3)^4/(10^5*10^2)
= (10^3*4)/(10^5+2)
= 10^12/10^7
= 10^12-7
= 10^5
E = (10^-5)^2/10^7*10^-3
= (10^-5*2)/(10^7+(-3))
= 10^-10/10^4
= 10^-10-4
= 10^-14
F = (10^-7*10^-3)/(10^5)^3
= (10^-7+(-3))/(10^5*3)
= 10^-10/10^15
= 10^-10-15
= 10^-25
G =(10^13*10^-8)/(10^-3)^-5
= (10^13+(-8))/(10^-3*-5)
= 10^5/10^15
= 10^5-15
=
10^-10
H = (10^-12*10^-3)/10^-15
= (10^-12+(-3))/10^-15
= 10^-15/10^-15
= 10^-15-(-15)
= 10^0
= 1
Voilà j'espère avoir pu t'aider ^^
0 votes
Thanks 0
gsantha
Verified answer
Bonsoir, déjà, rappellons le cours ^^
10ᵃ×10ᵇ=10(ᵃ⁺ᵇ)
(10ᵃ)ᵇ=10(ᵃₓᵇ)
10ᵃ/10ᵇ=10(ᵃ⁻ᵇ)
donc
A=(10¹⁵ₓ10²)/(10³ₓ10⁻³)
A=10¹⁷/10⁰
A=10¹⁷ je crois
B= (10⁸)/(10¹¹ₓ10⁵)
B=(10⁸)/(10¹⁶
)
B=10⁸⁻¹⁶
B=10⁻⁸
C=(10⁶ₓ10⁵)/(10²ₓ10⁻³)
C=(10¹¹)/(10⁻¹)
C=10¹²
D=(10³)⁴/(10⁵ₓ10²
)
D=
(10¹²)/(10⁷
)
D=10
⁵
E=(10⁻⁵)²/(10⁷ₓ10⁻³
)
E=
10⁻¹⁰/10⁴
E=10⁻¹⁴
F=(10⁻⁷ₓ10⁻¹³)/(10⁵)
³
F=(
10⁻²⁰)/(10¹⁵)
F=10⁻³⁵
G=(10¹³ₓ10⁻⁸)/(10⁻³)⁻⁵
G=(10⁵)/10¹⁵
G=10⁻¹⁰
H=(10⁻¹²ₓ10⁻³)/(10⁻¹⁵)
H=10⁻¹⁵/10⁻¹⁵
H=10°=1 ( je crois)
j espère de ne pas avoir fais des fautes de calculs
J'ai pris beaucoup de temps à faire tout le calcul
0 votes
Thanks 0
hoanganh
ptdr, tu as mis bcp d espace XD, sinon c est bien ^^
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A = (10^15*10^2)/(10^3*10^7)
= (10^15+2)/(10^3+7)
= 10^17/10^10
= 10^17-10
= 10^7
B = 10^8/(10^11*10^5)
= 10^8/(10^11+5)
= 10^8/10^16
= 10^8-16
= 10^-8
C = (10^6*10^5)/(10^2*10^-3)
= (10^6+5)/'10^2+(-3))
= 10^11/10^-1
= 10^11-(-1)
=10^12
D = (10^3)^4/(10^5*10^2)
= (10^3*4)/(10^5+2)
= 10^12/10^7
= 10^12-7
= 10^5
E = (10^-5)^2/10^7*10^-3
= (10^-5*2)/(10^7+(-3))
= 10^-10/10^4
= 10^-10-4
= 10^-14
F = (10^-7*10^-3)/(10^5)^3
= (10^-7+(-3))/(10^5*3)
= 10^-10/10^15
= 10^-10-15
= 10^-25
G =(10^13*10^-8)/(10^-3)^-5
= (10^13+(-8))/(10^-3*-5)
= 10^5/10^15
= 10^5-15
= 10^-10
H = (10^-12*10^-3)/10^-15
= (10^-12+(-3))/10^-15
= 10^-15/10^-15
= 10^-15-(-15)
= 10^0
= 1
Voilà j'espère avoir pu t'aider ^^
Verified answer
Bonsoir, déjà, rappellons le cours ^^10ᵃ×10ᵇ=10(ᵃ⁺ᵇ)
(10ᵃ)ᵇ=10(ᵃₓᵇ)
10ᵃ/10ᵇ=10(ᵃ⁻ᵇ)
donc
A=(10¹⁵ₓ10²)/(10³ₓ10⁻³)
A=10¹⁷/10⁰
A=10¹⁷ je crois
B= (10⁸)/(10¹¹ₓ10⁵)
B=(10⁸)/(10¹⁶)
B=10⁸⁻¹⁶
B=10⁻⁸
C=(10⁶ₓ10⁵)/(10²ₓ10⁻³)
C=(10¹¹)/(10⁻¹)
C=10¹²
D=(10³)⁴/(10⁵ₓ10²)
D=(10¹²)/(10⁷)
D=10⁵
E=(10⁻⁵)²/(10⁷ₓ10⁻³)
E=10⁻¹⁰/10⁴
E=10⁻¹⁴
F=(10⁻⁷ₓ10⁻¹³)/(10⁵)³
F=(10⁻²⁰)/(10¹⁵)
F=10⁻³⁵
G=(10¹³ₓ10⁻⁸)/(10⁻³)⁻⁵
G=(10⁵)/10¹⁵
G=10⁻¹⁰
H=(10⁻¹²ₓ10⁻³)/(10⁻¹⁵)
H=10⁻¹⁵/10⁻¹⁵
H=10°=1 ( je crois)
j espère de ne pas avoir fais des fautes de calculs
J'ai pris beaucoup de temps à faire tout le calcul