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Outstanding problems, discussion and more

## 2016 ISI Objective Solution Problem 1

Problem The polynomial $$x^7+x^2+1$$ is divisible by (A) $$x^5-x^4+x^2-x+1$$             (B) $$x^5-x^4+x^2+1$$ (C)   $$x^5+x^4+x^2+x+1$$          (D)   $$x^5-x^4+x^2+x+1$$ . Also Visit: I.S.I. & C.M.I Entrance Program Understanding the Problem: The problem is easy...

## Dudeney Puzzle : A Tale from Pythagoras to Dehn

" Take care of yourself, you're not made of steel. The fire has almost gone out and it is winter. It kept me busy all night. Excuse me, I will explain it to you. You play this game, which is said to hail from China. And I tell you that what Paris needs right now is to...

## Ekalavya, I(N)MO Camp, and Research Track

INMO Camp is in full swing at Cheenta. So is the new Research Track program for young researchers in school and college. What is happening at Cheenta this week.

## Spiral Similarity of cyclic quadrilaterals

Pedal triangles lead to spirally similar cyclic quadrilaterals in any triangle. A half turn and dilation by 1/8 create the new quadrilateral.

## I(N)MO Camp 2018-19

30 sessions, 45 hours, a team of 6 faculty members. Cheenta is presenting a camp for Indian National Math Olympiad (leading to International Math Olympiad). We begin on 14th December 2018 and it will run up to 19th January 2019.

## Test of Mathematics Solution Objective 398 – Complex Number and Binomial Theorem

Try a beautiful problem from complex numbers and geometry. It is from I.S.I. Entrance. We have created sequential hints to make this mathematical journey enjoyable!

## AMC 10 Paper Folding Geometry

We fold a paper using GeoGebra and explore a problem from American Mathematical Contest

## Work of the giants

From Hilbert to Thurston, Clairaut to Dunwoody, we explore competing methods of writing mathematics. They form the philosophical basis of Cheenta Classes.