I have two questions about Oct.29 subject tests

Problem 1: [deleted]

Problem 2: [deleted]

I have two questions about Oct.29 subject tests

Problem 1: [deleted]

Problem 2: [deleted]

Problem 1: [deleted]

Problem 2: [deleted]

I didn't see these questions. Is the GRE supposedly the same everywhere?

mitcims wrote:I have two questions about Oct.29 subject tests

Problem 1: [deleted]

I think you forgot +C. I think pi/4.

PS I didn't see that question on my GRE

BCLC wrote:I didn't see these questions. Is the GRE supposedly the same everywhere?

Sorry I haven't heard of this. This is taken from the test in U.S. The second problem is among the last few questions, it seems.

Also, I think that's a little unfair that they would test different questions for the same test, especially since I thought the second problem was one of the hardest on the test. But I suppose they figure out the distribution by seeing how everyone performs on each version.

Last edited by spablo on Tue Nov 01, 2016 11:51 pm, edited 1 time in total.

spablo wrote:The +C gets eliminated regardless in the first problem because of the initial value. I believe I likely put π/4 for this one. I didn't even consider 3π/4.

Problem 2 I remember it saying that [deleted]? But i didn't really attempt this problem during the test because I was running out of time.

I got the same answer as you did for the first question. For the 2nd one, I think we would need [deleted].

Anyone remembers the given answer choices of a question involving the limit of the term a_n where a_n is the series similar to n/(n^2+k)?

ghjk wrote:Anyone remembers the given answer choices of a question involving the limit of the term a_n where a_n is the series similar to n/(n^2+k)?

pi/4, it's a Riemann sum

When you took the test, you all had to sign an agreement stating that you would not discuss the exam problems.

ghjk wrote:Anyone remembers the given answer choices of a question involving the limit of the term a_n where a_n is the series similar to n/(n^2+k)?

Do you mean a_n= n/(n^2+k^2), that would be pi/4.

bhauryal wrote:ghjk wrote:Anyone remembers the given answer choices of a question involving the limit of the term a_n where a_n is the series similar to n/(n^2+k)?

Do you mean a_n= n/(n^2+k^2), that would be pi/4.

Not sure whether it's k or k^2. Somehow I don't remember seeing $pi/4$ as one of the answer choices. Either case, I think I got this one wrong (realize the Riemann sum, but could not figure out the bounds and the correct function man. How ridiculous that is:D)

ghjk wrote:bhauryal wrote:

Do you mean a_n= n/(n^2+k^2), that would be pi/4.

Not sure whether it's k or k^2. Somehow I don't remember seeing $pi/4$ as one of the answer choices. Either case, I think I got this one wrong (realize the Riemann sum, but could not figure out the bounds and the correct function man. How ridiculous that is:D)

If I'm thinking of the same problem, it was an infinite product, not a sum, with all terms less than 1. The third or fourth partial product was smaller than all but one of the answers, so it was that one

smirnov wrote:If I'm thinking of the same problem, it was an infinite product, not a sum, with all terms less than 1. The third or fourth partial product was smaller than all but one of the answers, so it was that one

That one is different though...And it's all telescoping in that one...But I think we should stop discussing in public here:D

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