holy_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 50-55. 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.
pat2211 wrote:holy_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 50-55. 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.
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(n-2), 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 minute
holy_krist wrote:pat2211 wrote:holy_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 50-55. 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.
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(n-2), 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 minute
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:holy_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 50-55. 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.
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(n-2), 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 minute
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