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## Answers

The Brainliest Answer!

b-a=c-b point as 1

According to question

1/bc,1/ca,1/ab

let us check thei difference if their will have common difference then they will definately in Ap

1/ca-1/bc⇒

__bc-ca__

abc²

__b-a__

abc

__1/ab-1/ca__

__c-b__

__abc__

from eq 1

__b-a__

abc

they have common ratio.hence these terms are also in AP