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March 14, 2018
Not Pythagorean Triple

The Idea: Modular arithmetic provides a way to understand Pythagorean Equations. In the following videos we will explore the process.

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March 12, 2018
Math Problems: Seemingly Easy, Yet intense!

Try 3 levels of Math problems that seem easy, yet it is intense. Challenge yourself and your friends with these problems. Level 1 - Easy - 10 points The first problem is something that is somewhat elementary.  From a biased coin(a coin where the probability of heads is not 1/2) how can you generate two […]

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March 2, 2018
Barycentric Coordinates - I.S.I 2014 Problem 2

In I.S.I 2014 Problem 2 we have tried to solve a problem using the idea of barycentric coordinates.

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February 28, 2018
March Problem Lists

Understand Choose your course and download the Problem List document. The assignment page link is also added. You may submit the solutions there. This will constitute 50% of your monthly grade. Math Olympiad Early Bird (India) Number Theory Problem List (Early Bird) Link to Assignment Page (only registered users may access) Chemistry Olympiad Program Thermodynamics […]

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February 16, 2018
A familiar Functional Equation

Cauchy's functional equations are very simple. The most familiar one has a simple formula: f(x + y) = f(x) + f(y) But first, for the uninitiated, what is a functional equation after all?  What is a functional equation? Usually, functions appear as formulae. For example ( f(x) = x^2 ) is a function. It takes […]

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January 29, 2018
Contraction of a function - advanced Cheenta seminar

It is almost like deflating a balloon. But the effect is exponential.  Today (29th January 2018, Monday), we have a special concept building cum problem-solving session on Contraction of a function.    When   10 PM I.S.T. (29th January 2018)    Where:    Online (link will be posted in Cheenta Commons, Open Slate skype group)   […]

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January 21, 2018
B.Math 2005 Problem 5 Part 1

Problem Next Continue here

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December 31, 2017
Graphing an Integral - Part 3

This is a video in which you would learn Graphing an Integral. This is the third part of the video. It is taken from ISI B.Stat 2005 Problem 2. Watch, learn and enjoy the video.

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December 30, 2017
Graphing an Integral - Part 2

This is a video in which you would learn Graphing an Integral. This is the second part of the video. It is taken from ISI B.Stat 2005 Problem 2. Watch, learn and enjoy the video.

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December 29, 2017
Graphing an Integral | B.Stat 2005 | Problem 2

In I.S.I.'s B.Stat Entrance 2005, the following problem appeared: Problem: Let $$ f(x) = \int_0^1 |t-x|t dt $$ for all real x. Sketch the graph of f(x). What is the minimum value of f(x)? Here is the first installment of a discussion on that. Part 1 Part 2 [button url="https://dev.cheenta.com/graphing-an-integral-part-2/" class="" bg="" hover_bg="" size="0px" color="" […]

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May 31, 2020
Function Problem | AIME I, 1988 | Question 2

Try this beautiful problem from the American Invitational Mathematics Examination I, AIME I, 1988 based on function. You may use sequential hints.

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May 31, 2020
Area of a triangle | PRMO 2017 | Question 25

Try this beautiful problem from the Pre-RMO, 2017, Question 23, based on Solving Equation. You may use sequential hints to solve the problem.

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May 28, 2020
Solving Equation | PRMO 2017 | Question 23

Try this beautiful problem from the Pre-RMO, 2017, Question 23, based on Solving Equation. You may use sequential hints to solve the problem.

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May 28, 2020
Reflection Problem | AIME I, 1988 | Question 14

Try this beautiful problem from the American Invitational Mathematics Examination I, AIME I, 1988, Question 14, based on Reflection.

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May 27, 2020
Ordered Pairs | PRMO-2019 | Problem 18

Try this beautiful Number Theory problem from PRMO, 2019, problem-18, based on Ordered Pairs. You may use sequential hints to solve the problem.

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May 27, 2020
Maximum area | PRMO-2019 | Problem 23

Try this beautiful Geometry problem from PRMO, 2019, problem-23, based on finding the maximum area. You may use sequential hints to solve the problem.

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May 27, 2020
Rectangle Pattern | AMC-10A, 2016 | Problem 10

Try this beautiful problem from Geometry based on Rectangle Pattern from AMC-10A, 2016, Problem 10. You may use sequential hints to solve the problem.

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May 27, 2020
Ratio of Circles | AMC-10A, 2009 | Problem 21

Try this beautiful problem from Geometry: Ratio of area of Circles from AMC-10A, 2009, Problem 21. You may use sequential hints to solve the problem.

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May 27, 2020
Problem on Complex plane | AIME I, 1988| Question 11

Try this beautiful problem from the American Invitational Mathematics Examination I, AIME I, 1988, Question 11, based on Complex plane.

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May 21, 2020
Quadratic Equation Problem | AMC-10A, 2005 | Problem 10

Try this beautiful problem from algebra, based on Quadratic equation from AMC-10A, 2005. You may use sequential hints to solve the problem.

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