Bonjour,
I = ( 2×10^6 )/( 3×10^4 )
I = ( 2/3 ) × ( 10^6/10^4 )
I = ( 2/3 ) × 10^(6-4)
I = ( 2/3 ) × 10^2
J = ( 3×10^5×2×10^-4 )/( 9×10^2 )
J = ( 2×10^(5-4) )/( 3×10^2 )
J = ( 2/3 ) × ( 10/10^2 )
J = ( 2/3 ) × 10^(1-2)
J = ( 2/3 ) × 10^-1
K = ( 5×10^5×0,7×10^-8 )/( 2,1×10^-3 )
K = ( 5×10^5-8 )/( 3×10^-3 )
K = ( 5/3 ) × ( 10^-3/10^-3 )
K = 5/3