# Questions tagged [gre-exam]

For questions relevant to the general or subject-specific Graduate Record Examination, abbreviated GRE.

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### How many 2-digit positive integers are there?

How many 2-digit positive integers are there such that the product of their two digits is 24? The answer given is four. I'm not certain if I understand this question correctly and need some guidance ...
• 2,233
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### When to take the math GRE, in my situation. [closed]

I am a technically a freshman mathematics and computer science major at the University of Kentucky. However, I was able to take a lot of math classes in high-school (I was home schooled) at the local ...
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• 127
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### finding the number of all real zeros of $f(x)=\sec(x)-e^{-x^2}$

How can we find the number of all real zeros of $f(x)=\sec(x)-e^{-x^2}$? This was an exam question of GRE subject. Also I am struggle with sketching the graph $f$ by hand.
• 3,409
1 vote
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### GRE Subject question $\log x=c x^4$ [duplicate]

For what positive value of $c$ does the equation $\log x=cx^4$ have exactly one real solution for $x$?. Thank you.
618 views

### x minute break in work rate problem

Working alone at their respective constant rate, Audery can complete a certain job in 4 hours, while Ferris can do the same job in 3 hours. Audery and Ferris worked together on the job and completed ...
• 127
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### GRE question $\lim_{n \to \infty} \inf_{x \in \mathbb R} (e^x-nx)$ [closed]

How would you solve this question? $$\lim_{n \to \infty} \inf_{x \in \mathbb R} (e^x-nx)$$ I found it in a GRE exam but I'm not sure how to solve it.
• 151
1 vote
483 views

### Transform recursive sequence to direct.

I am taking the GRE General Exam in a few weeks and there are some problems about sequences that I have found a bit difficult, e.g given a sequence in recursive form like $S_{n} = S_{n-1} - 10$ and ...
• 11
1 vote