Question

please solve this sum

Answer 1

Hope this helps you!!!
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Answer 2

Hi friend,

8 can be written as 2*2*2=2³
125 can be written as 5*5*5=5³

(8/125)⁻¹/₃ can be written as (2³/5³)⁻¹/₃ 
                                             =(2/5)⁻³/₃
                                             =(2/5)⁻¹
                                             =5/2=2.5.

HOPE THIS HELPS !!