Question 218357
Remember that {{{x^(-2)=1/x^2}}} or {{{1/x^(-2)=x^2/1=x^2}}}. I.e. just flip the fraction to rewrite with a positive exponent.



So {{{(sqrt(289))^(-3)=(17)^(-3)=1/(17^3)=1/4913}}}



This means that {{{(sqrt(289))^(-3)=1/4913}}}