Sagot :
(2^3×10^4)×(2^5×10^9)/2^7×10^13
=(2^3×10^4×2^5×10^9)/2^7×10^13
=(2^8×10^13)/2^7×10^13
=2^8/2^7 ×(10^13-13)
=2^(8-7)×10^0
=2^1×1
=2×1
=2
Réponse :
Explications étape par étape :
bonsoir
A = (2^3×10^4)×(2^5×10^9)/2^7×10^13
A = (2³ × 10⁴ ) × (2⁵ × 10⁹ ) / (2⁷ × 10¹³)
A = (2³ × 2⁵ )/2 ⁷ × (10 ⁴× 10⁹ )/10¹³
A = 2³⁺⁵/2⁷ × 10⁴⁺⁹/10¹³
A = 2⁸/2⁷ × 10¹³/10¹³
A = 2⁸⁻⁷ × 10¹³⁻¹³
A= 2¹ × 10⁰ (10⁰ = 1)
A = 2 × 1
A = 2