Question 26274
i hope you mean {{{(1*10^3)/(4*10^7)}}}


1/4 is 0.25

with division, powers subtract, so 3-7 is -4... so we get {{{0.25x10^(-4)}}}. Now we tend to write the absissa ( the number before the powers of 10) as a number between 1 and 9.999999999999, so we get {{{2.5x10^(-5)}}}.


jon.