9/17/16 Subject Test
9/17/16 Subject Test
This happened today. Any thoughts? I thought it was pretty accessible and on par with the released practice tests. Last October I answered ~40 and got 51%ile. Today I answered 48 and I ran out of time before I could do a few others that weren't too hard.

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Re: 9/17/16 Subject Test
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Last edited by verysweetjuices on Sun Sep 25, 2016 9:40 pm, edited 1 time in total.
Re: 9/17/16 Subject Test
I answered 51. I read them all, and there were a few that I knew how to do if I had a bit more time. Also a couple that spent way to much time on, only to leave them unanswered. Hoping to 70+ percentile, but will take again in October no matter what. Actually enjoyed taking the exam, just upset that I couldn't attempt them all.

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Re: 9/17/16 Subject Test
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Last edited by verysweetjuices on Mon Sep 26, 2016 6:06 pm, edited 2 times in total.

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Re: 9/17/16 Subject Test
Well this was my first time taking the test and I am senior. I think I attempted ~58. Out of the remaining 8 questions, some of them I was not sure about whereas some of them I did not know how to approach.
I think out of ~58 I have attempted, even if I assume that anywhere from 25 might be wrong due to hastening as well as due to pure plain silly error or not reading the question properly, I might be looking at a score somewhere between 5054.
No clue what that comes out as percentile, hopefully anywhere from 75th80th. I am retaking it in October as I only had like a month of revision of calculus before taking this.
I think out of ~58 I have attempted, even if I assume that anywhere from 25 might be wrong due to hastening as well as due to pure plain silly error or not reading the question properly, I might be looking at a score somewhere between 5054.
No clue what that comes out as percentile, hopefully anywhere from 75th80th. I am retaking it in October as I only had like a month of revision of calculus before taking this.

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Re: 9/17/16 Subject Test
I felt that the first half of the test was a breeze (I was telling myself, "I'm going to kill this!")...not so much the second half. I'd say I answered 5055. Definitely taking it again in October. How long does it take scores to be reported? And yes, I hate ETS too; going through this process is probably the most stressful thing I've done in years.. ****Oops, don't want to get in trouble with ETS.
Last edited by holy_krist on Sun Sep 18, 2016 4:25 pm, edited 1 time in total.

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Re: 9/17/16 Subject Test
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Last edited by verysweetjuices on Mon Sep 26, 2016 6:05 pm, edited 2 times in total.

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Re: 9/17/16 Subject Test
You should not discuss particular problems on the test: if you do, this forum risks being targeted by ETS for violating test security. Regarding the previous post, every test administration uses several different tests (or "forms," as the jargon has it) to prevent cheating.
Re: 9/17/16 Subject Test
A simple trick : sin(110x)sin(108x)=2sin(x)cos(99x) so if F(n) is the integral with resp to sin(nx)/sin(x) then we have F(n)=F(n2), and it is 0 since sin(0)=0. If you know some basic fact about dirichlet kernel, you can also find the correct answer in less than 1 minuteholy_krist wrote:I felt that the first half of the test was a breeze (I was telling myself, "I'm going to kill this!")...not so much the second half. I'd say I answered 5055. Definitely taking it again in October. How long does it take scores to be reported? And yes, I hate ETS too; going through this process is probably the most stressful thing I've done in years.. PS, how do you integrate sin(110x)/sin(x)? I blanked on the test and I'm still blanking. There must be some trick.

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Re: 9/17/16 Subject Test
Wow the tricks are real. How can anyone think knowing these little tricks is a good measure of your mathematical potential? Unless I guess you think doing mathematics is nothing but finding the right tricks to use in the right situations, which actually now that I think about it isn't totally absurd. But still...pat2211 wrote:A simple trick : sin(110x)sin(108x)=2sin(x)cos(99x) so if F(n) is the integral with resp to sin(nx)/sin(x) then we have F(n)=F(n2), and it is 0 since sin(0)=0. If you know some basic fact about dirichlet kernel, you can also find the correct answer in less than 1 minuteholy_krist wrote:I felt that the first half of the test was a breeze (I was telling myself, "I'm going to kill this!")...not so much the second half. I'd say I answered 5055. Definitely taking it again in October. How long does it take scores to be reported? And yes, I hate ETS too; going through this process is probably the most stressful thing I've done in years.. PS, how do you integrate sin(110x)/sin(x)? I blanked on the test and I'm still blanking. There must be some trick.
Re: 9/17/16 Subject Test
I think they are testing your background in real analysis rather than tricks. As I mentioned before, you can solve it straight forward by writing as complex exponential ( as in the Diricchlet kernel ).holy_krist wrote:Wow the tricks are real. How can anyone think knowing these little tricks is a good measure of your mathematical potential? Unless I guess you think doing mathematics is nothing but finding the right tricks to use in the right situations, which actually now that I think about it isn't totally absurd. But still...pat2211 wrote:A simple trick : sin(110x)sin(108x)=2sin(x)cos(99x) so if F(n) is the integral with resp to sin(nx)/sin(x) then we have F(n)=F(n2), and it is 0 since sin(0)=0. If you know some basic fact about dirichlet kernel, you can also find the correct answer in less than 1 minuteholy_krist wrote:I felt that the first half of the test was a breeze (I was telling myself, "I'm going to kill this!")...not so much the second half. I'd say I answered 5055. Definitely taking it again in October. How long does it take scores to be reported? And yes, I hate ETS too; going through this process is probably the most stressful thing I've done in years.. PS, how do you integrate sin(110x)/sin(x)? I blanked on the test and I'm still blanking. There must be some trick.

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Re: 9/17/16 Subject Test
Nice trick! I hope I can come up with something like that on the exam, even if I am not familiar with Dirichlet kernel.pat2211 wrote:A simple trick : sin(110x)sin(108x)=2sin(x)cos(99x) so if F(n) is the integral with resp to sin(nx)/sin(x) then we have F(n)=F(n2), and it is 0 since sin(0)=0. If you know some basic fact about dirichlet kernel, you can also find the correct answer in less than 1 minuteholy_krist wrote:I felt that the first half of the test was a breeze (I was telling myself, "I'm going to kill this!")...not so much the second half. I'd say I answered 5055. Definitely taking it again in October. How long does it take scores to be reported? And yes, I hate ETS too; going through this process is probably the most stressful thing I've done in years.. PS, how do you integrate sin(110x)/sin(x)? I blanked on the test and I'm still blanking. There must be some trick.
BTW: I think it should be "cos(109x)" in your equation.

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Re: 9/17/16 Subject Test
Scores are posted