Question 28887
{{{a^(-3)}}} is the same thing as {{{1/a^3}}}... whichever power you have as a "numerator", either positive or negative, the opposite version lies on the denominator.


so {{{x^2}}} is the same thing as {{{1/x^(-2)}}}


and {{{1/y^2}}} is the same thing as {{{y^(-2)}}}


hence {{{x^2/y^2}}} is {{{y^(-2)/x^(-2)}}}


jon.