Question

please solve this in copy​

Answer 1

Answer:

given. (144/225)⁻¹/x = (12/15)⁻⁴

on cross multiplication, we get

x = (144/225)⁻¹ ÷ (12/15)⁻⁴

x = (225/144)¹ ÷ (15/12)⁴ [ (b/a)⁻¹ = (a/b)¹ ]

x = 15²/12² × 12⁴/15⁴

x = 15² × 15⁻⁴× 12⁴ × 12⁻²

x = 15⁻² * 12²

x = 12²/15²

x = 144/225

Answer 2

Hope it helps you with your work