Q.1. Let AOB be a given angle less than $latex 180^{\circ}$ and let P be an interior point of the angular region determined by $latex \angle AOB$. Show, with proof, how to construct, using only ruler and compass, a line segment CD passing through P such that C lies on the way OA and D lies… Continue reading Geometry Problems of RMO’17

# Author: Aditya Ghosh

## Number Theory for Rmo

Here is a document containing stuffs you need to know for RMO-level problems in number theory. I have also added some example problems and some as exercises. RMO_NT

## ISI Interview Experience

Some weeks ago, a co-author of this blog asked me to provide our interview experiences here. So here is my experience of B.stat interview at ISI: Note: This was written by me couple of days after my interview. Pre-interview My interview was scheduled on 2:30pm. I was supposed to come 30mins prior to that. There… Continue reading ISI Interview Experience

## How I Prepared for Olympiads

As per the request of many, I am writing this post about how I prepared for the $latex \underline{olympiads}.$ Note on how to prepare for isi/cmi is little different and will be added later. $latex \textbf{\underline{My story}:}$ I did not started much earlier (which sometimes I regret). I was in class 9 when a boy… Continue reading How I Prepared for Olympiads

## A Problem Set

Here is a collection of 50 problems, compiled by Aditya Guha Roy. These are mainly for isi/cmi aspirants. 50problemsinmaths

## Handout on Inequalities

Sorry guys for delaying too much! Here is my handout on inequalities. Unfortunately it is not finished yet.. inequalities_adi (unfinished) I would add some more sections like substitution strategy, rearrangement inequality, normalisation techniques etc. and also some more challenging problems. I will try to make it finish as soon as possible. Hope you all like… Continue reading Handout on Inequalities

## Naoki Sato’s Notes on Number Theory

Here is a very nice resource for number theory stuffs. It contains all you need to know even upto IMO ! Do have a read : N.Sato_NumberTheory (The topics at the end are a bit advanced and can be skipped for the first reading.)

## Strategies for Number Theory Problems-1

Here is the first chapter of the series of articles I shall write about some strategies for olympiad-style problems. In this article I considered number theoretic problems only. The article is attached as a pdf below: Strategies-1-Number Theory-1 Correction : In exercise 1.1. it would be $latex n^2+19n+92 $ in place of $latex n^2+19+92 .$

## Rearrangement inequality, Power of a point

Here is a pdf containing two very useful articles, one on Rearrangement inequality and the other on power of point with respect to a circle. v4_n3 mathematical excalibur