An Oxford University Math Problem

Here’s another fun calculus problem from the Oxford MAT 2020. The Oxford MAT is an annual entrance exam for students looking to study mathematics at the University of Oxford. Let’s see if you are smart enough to do that! 

Here’s a hint: the difference of squares …

I recommend you pause the article, grab your pen and paper, and give this a go. When you are ready, keep reading for the solution! 

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