Trial Q (1 Viewer)

[krypticlemonjuice]

Can someone please explain how they did this question???

 

[member 6003]

we have

​

So you need to think about the distance from a / b in terms of

​

So then its closer to A, idk how they got 1/2. I would show more working like
maybe I'm missing something since I didn't do i)

Edit: they got 1/2 since if its less than 1/2 obviously its closer

 

[krypticlemonjuice]

we have

​

So you need to think about the distance from a / b in terms of

​

So then its closer to A, idk how they got 1/2. I would show more working like
maybe I'm missing something since I didn't do i)

Edit: they got 1/2 since if its less than 1/2 obviously its closer

Hmm, I see, thanks for your help!