écrit chaque nombre en notation scientifique
670 000 x 10^11
0.003 4 x 10^16
34,9x10^-10
0.0012x10^-13
svp
670 000 x 10^11
0.003 4 x 10^16
34,9x10^-10
0.0012x10^-13
svp
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Réponse :
Bonsoir
Explications :
670 000 x 10^11 = 6.7 × 10⁵×10¹¹= 6.7×10¹⁶
0.003 4 x 10^16= 3.4×10^(-3)×10¹⁶= 3.4×10¹³
34,9x10^-10= 3.49×10¹×10^(-10)= 3.49×10^(-9)
0.0012x10^-13= 1.2×10^(-3)×10^(-13)= 1.2×10^(-16)
Rappel : a^n×a^m= a^(n+m)