Math

Legendary test question – π is less than 22/7

Happy #PiDay! When two of the hardest tests in the world cover the same problem, you know it’s a big deal.

References
Wikipedia article
https://en.wikipedia.org/wiki/Proof_that_22/7_exceeds_%CF%80
Putnam exam 1968 A1
https://prase.cz/kalva/putnam/putn68.html
JEE Advanced 2010 Paper Solutions Part-1 | IIT-JEE | Strategy, Tips, & Tricks | Paper Discussion (see around 55:30)
https://youtu.be/Zz4buu5y7_8?t=3330
Proving 22/7 is greater than PI using Definite Integrals.

Why is pi less than 22/7? – Week 14 – Lecture 9 – Mooculus

2010 IIT-JEE Advanced paper 1 question 41 direct link
https://drive.google.com/file/d/0BxIR7Kj71SMKUmxnUkdhdWJ5NWM/view

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