Varun ~ Oxford/Cambridge Maths Mock Interview Question

In this video one of our tutors, Varun, walks through a mock interview question for Maths. Please do pause the video to discuss your thoughts on the question, before Varun discusses how he would recommend approaching it. Hope this video helps!

[nol]

for 12:20, my thinking about the concavity was that as x->0+, arctan(1/x)->pi/2, so y^2 would be about pi/2*x. and knowing the graph of x=y^2, we can make an intuition of the shape

[jonathanm]

Use Taylor series to approximate the graph