Question

((-17)^-4)^-6):((-17)^-13)^-2-(1/17)^2

Answer 1

((-17)^-4)^-6):((-17)^-13)^-2-(1/17)^2=

$(-17)^{24}: (-17)^{26} - (frac{1}{17} )^2= (-17)^{-2} -(frac{1}{17} )^2=( frac{1}{17})^2-(frac{1}{17} )^2 =0$