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May 15, 2017
Region close to center | I.S.I. B.Stat, B.Math Subjective 2017

Try this problem from ISI B.Stat, B.Math Subjective Entrance Exam, Problem 4 based on Region close to the center. Problem: Let S be the square formed by the four vertices (1, 1), (1, -1), (-1, 1), and (-1, -1). Let the region R be the set of points inside S which are closer to the […]

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May 15, 2017
ISI BStat 2017 Subjective 2 | Right angled triangle in a circle

Try this beautiful problem from ISI BStat 2017 Subjective 2 based on right-angled triangle in a circle. Understand, solve, and learn.

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May 14, 2017
Sequence of tangents (I.S.I. B.Stat and B.Math 2017, subjective problem 1)

Problem: Let the sequence \( { a_n} _{n \ge 1 } \) be defined by \(a_n = \tan n \theta \) where \( \tan \theta = 2 \). Show that for all n \( a_n \) is a rational number which can be written with an odd denominator. Discussion: This is simple induction. The claim […]

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May 14, 2017
ISI B.Stat Paper 2017 Subjective| Problems & Solutions

Here, you will find all the questions of ISI Entrance Paper 2017 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Problem 1 : Let the sequence \( \{ a_n\} _{n \ge 1 } \) be defined by $$ a_n = \tan n \theta $$ […]

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May 10, 2017
Complex Fifth Roots | ISI B.Stat Subjective 2007
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May 8, 2017
How to Solve a Math Problem | Anatomy of a Problem

How to Solve a Math Problem? A very common question. Here is how to understand the anatomy of a problem and also why problem-solving is important.   Artificial Intelligence, Raychaudhuri Mathematics Award, PreRMO   Have you read Polya's 'How to Solve It'? This is a pioneering work on problem-solving strategies.    Why is this important? […]

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April 25, 2017
B.Math 2009 Objective Paper| Problems & Solutions

Here are the problems and their corresponding solutions from BStat Hons Objective Admission Test 2005. Try it yourself and then read the solutions.

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March 27, 2017
Notes in Mathematics (March, 2017)

Dear students,   I hope you are doing well.    French mathematician Yves Meyer won the Abel Prize for his work in Wavelet theory. You may read more about his work in the words of celebrated mathematician Terence Tao here.   Presently I am reading a cult classic by Hilbert: Geometry and Imagination. In introductory […]

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March 26, 2017
ISI B.Stat, B.Math Paper 2016 Subjective| Problems & Solutions

Here, you will find all the questions of ISI Entrance Paper 2016 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Problem 1: In a sports tournament of $n$ players, each pair of players plays exactly one match against each other. There are no draws. […]

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February 23, 2017
Antipodal map and a fixed point theorem

Mathematicians love fixed point theorems. Brouwer fixed point theorem is one such result. It states that "for any continuous function f mapping a compact convex set into itself there is a point a such that f(a) = a." We are interested in one such fixed point theorem. Consider maps (continuous functions) from [latex] S^n \to S^n [/latex] […]

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