Columbia University Science Honors Program ENTRANCE EXAMINATION

Hey guys i got c/b for the root one.

lol this is making me doubt every shred of hope that i did good on the test. Btw does anyone know any freshmen who get in with around 8-10 challenge questions right, because i may have done some wrong lmao

Yeah I originally thought I got a 15/15 on challenge, now I think i got a 13/15

My friend got in as a freshman but he had like a 100% in every section

There were 4 but question asked for distinct x and y so one of them get eliminated. I think (0,0) was the one… Other 3 were (1,0),(±√3/2,1/2)

No that’s not right-- it said rational numbers (i think) which eliminates sqrt3/2, and (1,0) didn’t work for y=2xy

I think the answer for that one was 1 since the only thing that worked was (0,0)

Quick question: do we ever get the correct answers to the questions? And do we ever get the questions themselves?

no lol

No to what? The questions? That wouldn’t be fair at all. How are we going to learn from our mistakes then?

The answer to the x=x^2+y^2 one was 4 because (1,0), (0,0), (0.5, 0.5), and (0.5, -0.5) all work
(Or is it 3 if x has to be distinct, I don’t remember the exact wording)

@PogChamp yes that is correct…I was about to post all four solutions. My 15/15 is still but barely holding out.

Wait it said distinct?

Im very positive dat it said distinct… So the answer is 2 lol i put 3 because i did the subtraction wrong and got ±√3/2 instead of ±1/2. :smiley:

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{O}{O}
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@sickofconfusion no to both

That’s Columbia for you

Was it distinct (x,y) or distinct x and y?

I WOULD STOP DISCUSSING THE QUESTIONS IF I WERE YOU SINCE THERE IS ARE STILL A BUNCH OF KIDS WHO NEED TO TAKE THE MAKE-UP EXAM.

Hi.

Oh god I feel really behind. I’m a junior right now and for the challenging math section, I answered at most 5 questions. I was very hesitant in guessing because the instructors stressed that random guessing wont help. In the challenging math part, most of the questions I didn’t know how to start at all and now I just read that some freshmen answered all questions believing that they got them all right…
Should I be nervous?