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## Homework Statement

Hi

Please, I need clarification on this queston

Show that the equation

0 = x/2 -1/x

,x>0, has a root in the interval [1, 2].

b Obtain the root, using interval bisection two times. Give your answer to two significant figures.

## Homework Equations

Change in sign of values between (a+b)/2

## The Attempt at a Solution

I am actually wondering how many times do I find (a+b)/2. The question obviously states twice. But the answer was based on 4 interval bisections! I obtained 1.3 and they obtained 1.4. Can anyone please comment?