Question

Q.20. By which number should (4/5) power-2' be multiplied to get
(-4/5) power'-3'?​

Answer 1

Answer:

(4/5)^[-1] or 5/4

Step-by-step explanation:

Let the number multiplied be x.

According to Question,

(4/5)^[-2] * x = (4/5)^[-3]

=> x = (4/5)^[-3] / (4/5)^[-2]

=> x = (4/5)^[-3+2]

=> x = (4/5)^[-1]