Question

if 10^2y =25, then find 10^-y​

Answer 1

(10^y)^2=5^2

10^y=5

(10^y)^-1=(5^)-1

10^-1=1/5(Ans)

Answer 2

Answer:

Step-by-step explanation:(10^-Y)^-2=5²

(1/10^-y)^-2=5²[cancel squares]

1/10^-y=5

10^-5=1/5