Question

[(4)^-1-(5)^-1]^2of(5/8)-1

Answer 1

Solution:

____________

$[(4)^-^1 - (5)^{-1}]^{2} \ of \ (\frac{5}{8} )^{-1}\\\\ = (\frac{1}{4} - \frac{1}{5} )^{2} \times \frac{8}{5} \\\\ = (\frac{1}{20}) ^{2} \times \frac{8}{5} \\\\ = (\frac{1}{20})^2 \times \frac{8}{5}\\\\ = \frac{1}{400} \times \frac{8}{5} \\\\ = \frac{1}{250} \ \ .............(Ans)$

___________________________________

Any problem in understanding the solution , please feel free to ask in the comment box.