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February 28, 2019
Excursion in Geometry - INMO 2019 Problem 1

A beautiful journey in geometry through sequential hints! We take a (very) slow walk in Indian National Math Olympiad (INMO 2019) first problem.

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February 23, 2019
Dance of the Logarithm - AMC 10A 2014 Problem 25

In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x. In the simplest case, the logarithm counts the number of occurrences of the same factor in repeated multiplication AMC 10A 2014 Problem 25 (or 12A Problem 22) is a […]

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February 16, 2019
Natural Geometry of Natural Numbers

Natural numbers also have a natural geometry of their. This post is about how they look in practice.

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February 12, 2019
Really understanding Barycentric coordinates

Sometimes we are interested in the relative position of a point with respect to a triangle. Is it close to the vertices? Is it closer to one of the sides compared to the other sides? This brings home the notion of mass point coordinates or barycentric coordinates.

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February 11, 2019
Problem Solving Marathon Week 2

We are having a full fledged Problem Solving Marathon. We are receiving wonderful responses from the end of our students which is making the session more and more alluring day by day. Here we are providing the problems and hints of "Problem Solving Marathon Week 2". The Set comprises three levels of questions as following-Level 0- for […]

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February 10, 2019
Barycentric coordinate for Math Olympiad 1

Barycentric coordinates can be very useful in solving advanced geometry problems for math olympiad. We take a leaf of Cheenta lectures on this idea.

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February 9, 2019
Problem Solving Marathon Week1 Solution

Problem Solving Marathon Week1 Solution the effortless attempt from Cheenta's existing student as well as from the end of mentor.

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February 8, 2019
AMC10/12 Combinatorics Problem

Combinatorics is one of the most important topic for the preparation of Mathematics Olympiad culture as well as American Mathematical Contest(also known as AMC). AMC10/12 Combinatorics Problem which is composed of selected problems from previous year. AMC 10 [Q.1]A scanning code consists of a $latex 7 \times 7$ grid of squares, with some of its […]

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February 7, 2019
Problem Solving Marathon Week 1

Problem Solving Marathon Week 1 is an initiative from Cheenta's end to enhance the problem solving skill of the existing student body.

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January 25, 2019
Sign Pyramid - AMC 8 2018 Problem 19

Stabilization is an important tool in combinatorics. An application in AMC 8, 2018, Problem 19, on 'sign pyramid' illustrates the technique

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June 7, 2020
Derivative Problem | TOMATO BStat Objective 764

Try this TOMATO problem from I.S.I. B.Stat Entrance Objective Problem based on Surface area. You may use sequential hints.

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June 7, 2020
Surface area of Cube Problem | AMC-10A, 2007 | Problem 21

Try this beautiful problem from Geometry, based on Cube from AMC-10A, 2007. You may use sequential hints to solve the problem

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June 6, 2020
Angles and Triangles | AIME I, 2012 | Question 12

Try this beautiful problem from the American Invitational Mathematics Examination I, AIME I, 2012 based on Angles and Triangles.

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June 6, 2020
Triangle and Quadrilateral | AMC-10A, 2005 | Problem 25

Try this problem from Geometry: Ratios of the areas of Triangle and Quadrilateral from AMC-10A, 2005 You may use sequential hints to solve the problem.

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June 6, 2020
Digits and Numbers | AIME I, 2012 | Question 10

Try this beautiful problem from the American Invitational Mathematics Examination I, AIME I, 2012 based on Digits and Numbers.

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June 5, 2020
Largest Common Divisor | PRMO-2014 | Problem 11

Try this beautiful problem from Geometry based on Try this beautiful problem from Algebra based on Largest Common Divisor . from PRMO 2014. You may use sequential hints to solve the problem.

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June 5, 2020
AP GP Problem | AMC-10A, 2004 | Question 18

Try this beautiful problem from Algebra based on AP GP from AMC-10A, 2004. You may use sequential hints to solve the problem.

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June 5, 2020
Greatest Common Divisor | AMC-10A, 2018 | Problem 22

Try this beautiful problem from ALGEBRA: Greatest Common Divisor AMC-10A, 2018. You may use sequential hints to solve the problem

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June 5, 2020
Area of the Octagon | AMC-10A, 2005 | Problem 20

Try this beautiful problem from Geometry:Area of Octagon.AMC-10A, 2005. You may use sequential hints to solve the problem

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June 5, 2020
Prime number Problem | ISI BStat | TOMATO Objective 96

Try this beautiful problem from Prime number from TOMATO useful for ISI B.Stat Entrance.You may use sequential hints to solve the problem.

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