Question

pllzzzzz solve this
i dont know​

Answer 1

Step-by-step explanation:

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

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

$( { \frac{1}{20}) }^{2} \times \frac{8}{5} = \frac{1}{400} \times \frac{8}{5} = \frac{1}{250}$

Formula used in the sum:

$({ \frac{a}{b} })^{ - m} = ( { \frac{b}{a} })^{m}$

Answer 2

Answer:

8/25

Step-by-step explanation:

=(1/4-1/5)^2×(8/5)

=((1/4)^2-2(1/4)(1/5)+(1/5)^2)×(8/5)

=(1/16-2/20+1/25)×8/5

=(1/16-1/10+1/25)×8/5

=(26/160+1/25)×8/5

=(13/80+1/25)×8/5

=((325+80)/80×25)×(8/5)

=(405/2000)×(8/5)

=400×8/2000×5

=3200/10000

=32/100

=16/50

=8/25