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The essential criteria that Oxford is looking for is intellectual curiosity and how you use this to explore a topic/question/statement. Therefore, you should be prepared to answer in a way that demonstrat...

If we consider this like a normal quadratic problem, this becomes easy

x⁴ < 8x² + 9

x⁴ - 8x² - 9 < 0

(x^2...

This is the sum of a geometric series with an infinite number of terms.First, find the common ratio:(-2/9)/(2/3) = -1/3 , (2/27)/(-2/9) = -1/3Therefore, the common ratio is -1/3-1<(-1/3)<1 therefore...

Energy will be lost due to the plastic deformation of the mass as the bullet enters the mass. However momentum will always be conserved, so you can use this to find the speed of the mass when the bulle...

Like with many questions in the PAT test once you know what to do it is quite easy! To solve you can use a difference of two squares i.e. (2007-2006)(2007+2006). As the first bracket gives 1 and the se...