Online Course Discussion Forum

Areteem II-A

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Areteem II-A
by Angelina Li - Monday, May 3, 2021, 5:48 PM


I was wondering if I could get an extension for this week's homework. Also, I'm sorry this is late, but I am not sure how to do 9.26. 

Thank you,


Picture of John Lensmire
Re: Areteem II-A
by John Lensmire - Tuesday, May 4, 2021, 10:29 AM

Hi Angelina,

I extended the HW until tomorrow night so you can still submit it if you have time.

For 9.26:

  • In part (a), ranges of values will work. so you just want to describe which $x$ will work using inequalities, etc. I know we didn't solve 9.4(b) in class, but 9.26(a) is similar to that problem in terms of having ranges of values of $x$ that work.
  • In part (b), we actually have that either (i) $\lfloor 2x\rfloor = 2 \lfloor x \rfloor$ as in part (a) or (ii) $\lfloor 2x\rfloor = $ something else (involving $2 \lfloor x \rfloor$), which we're looking for in part (b).

Hope this helps a bit!

Picture of Angelina Li
Re: Areteem II-A
by Angelina Li - Tuesday, May 4, 2021, 1:00 PM

Thank you!