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rama

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**1. The pratement, all variables and given/known data**

If a =1÷(1-b) ,b=1÷(1-c),c=1÷(1-d) prove that a=d

## Homework Equations

## The Attempt at a Solution

a=1÷(1-b)

a-1÷(1-b)=0

{a(1-b)-1)}÷1-b=0

a-ab-1=0

a-ab=1

similarly

b-bc=1

c-cd=1

could any of you please give a hint, this was on test for 4 marks