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Weekly Challenge 43: A Close Match

Can you massage the parameters of these curves to make them match as closely as possible?

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Weekly Challenge 44: Prime Counter

A weekly challenge concerning prime numbers.

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Weekly Challenge 28: the Right Volume

Can you rotate a curve to make a volume of 1?

Weekly Challenge 30: the Sign of the Times

Stage: 5 Short Challenge Level: Challenge Level:2 Challenge Level:2

This is the live weekly challenge. Our solution to this weekly challenge will appear sometime next Monday, when the next weekly challenge will appear.

We don't publish user solutions for the weekly challenges in the same way as we do for the main problems on the site, but please do discuss the weekly challenges on the Ask NRICH -- follow the link from the main part of the challenge.

Sometimes fascinating extensions and explorations will arise from the challenges. Why not share your thoughts, questions and findings on the Ask NRICH thread?

We hope that you enjoy the challenges.

If you have any comments please email Steve Hewson at post16.nrich@maths.org.