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Archive | *GRE Math

Positive and Negative Square Roots on the GRE

Some questions to start: Can a square root be negative? Yes, there is such a thing as a negative square root. How would you deal with negative roots on the GRE? This question is actually fairly complicated, because it depends on how the GRE words the question. Let’s start with some practice problems before I […]

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Diagonals of a Polygon in GRE Geometry

Students love to skip over the basics, asking questions like: How many vertices does an octagon have? How many diagonals does an octagon have? What’s the difference between a regular octagon and, well, an octagon? And GRE geometry does delve into some complex polygon math. But before we get to that, I will begin with […]

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GRE Geometry Formulas

Perhaps you recall with more than a little dread your high school geometry class: fifteen-step proofs and the law of cosines were two things you were certain you’d never see again. Well, if you are taking the GRE, you were by no means mistaken—proofs and indeed all of trig are nowhere to be found on […]

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FAQ: Should I Study Probability?

I have 30 days to the test and am terrified about probability…what should I do? There is perhaps no other topic on the GRE math that instills as much dread in students as does probability. Understandably, students will obsess over this topic more than they will other topics. However, such an approach won’t only lead […]

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Learning from GRE Math Practice

I’m going to ask you a question whose answer seems painfully obvious. What is the purpose of doing practice GRE math questions? Take a minute to really consider that question in its entirety and explore the implications of your answer. If your answer was any of these, or something similar to these, then it’s too […]

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GRE Article of the Month – August 2014: The Game of Math

Don’t Teach Math, Coach It By Jordan Ellenberg for The New York Times In a recent New York Times article, Don’t Teach Math, Coach It, Jordan Ellenberg, a mathematic professor at the University of Wisconsin, talks about how to get kids excited about math. He starts off with a short anecdote about how the young […]

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