Answer:
sqrt(A/pi), -sqrt(A/pi)
Step-by-step explanation:
A=pi*r^2
r^2=A/pi
r=sqrt(A/pi), -sqrt(A/pi)
b^(-4/5) ...............
2 <em>3/5</em>
It means that the both sides of the expression in the given equation must be/are congruent.
Hope this helps!
