(7.1*10^-7)*(8.6*10^-5)
= (7.1*8.6)*10^(-7+(-5))
= 61.06*10^-12
= (6.106*10^1)*10^-12
= 6.106*10^-11
Each of the contributors to the product has 2 significant digits, so if you are concerned about that, you need to round the result to 2 significant digits. It would then be
6.1*10^-11
= (7.1*8.6)*10^(-7+(-5))
= 61.06*10^-12
= (6.106*10^1)*10^-12
= 6.106*10^-11
Each of the contributors to the product has 2 significant digits, so if you are concerned about that, you need to round the result to 2 significant digits. It would then be
6.1*10^-11
