Question

if a=(3/5)^-2 ÷(7/5)^0 , Find the value of a^-3.​

Answer 1

Answer:

729/15625

Step-by-step explanation:

a = (3/5)^-2 ÷ (7/5)^0

  = (5/3)^2 ÷ 1

  = 25/9

∴ a^-3 = (25/9)^-3

          = (9/25)^3

          = 729/15625

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