Question

plz solve this fast its really urgent​

Answer 1

it's the ans

hope it's helpful

Answer 2

Step-by-step explanation:

${( {4}^{ - 1} - {5}^{ - 1} )^{2} } \times \frac{5}{8} ^{ - 1}$

$= {( \frac{1}{4} - \frac{1}{5} )} ^{2} \times \frac{8}{5}$

because according to identity a^-1=1/a

$= {(\frac{5}{20} - \frac{4}{20} )} ^{2} \times \frac{8}{5}$

$= {( \frac{1}{20} )}^{2} \times \frac{8}{5}$

$= \frac{1}{400} \times \frac{8}{5}$

$= \frac{1}{250}$