Bonjour,
A = [tex]\frac{8 * 10^{4} * 7 * 10^{2}}{14 * 10^{-3}}[/tex] = [tex]\frac{4 * 2 * 7 * 10^{4+2+3} }{14}[/tex] = [tex]4 * 10^{9}[/tex]
C = [tex]\frac{2*2*3}{6*5} * 10^{-6-2+5-2}[/tex] = [tex]\frac{2}{5} * 10^{-5}[/tex] = [tex]\frac{4}{10} * 10^{-5}[/tex] = [tex]4 * 10^{-6}[/tex]
