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October 9, 2017
TIFR 2014 Problem 5 Solution -Convergence of sequence

TIFR 2014 Problem 5 Solution has been written for TIFR entrance preparation series. A problem on maps for bounded sequence from Real analysis.

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October 8, 2017
RMO 2017 Goa and Maharashtra

Let's solve the Regional Mathematics Olympiad Problem, RMO 2017 from Goa and Maharashtra. Try the problems and check your solutions here. (\ 1).((\ 16) marks)Consider a chessboard of size (\ 8) units(\ \times8) units (i.e., each small square on the board has a side length of (\ 1) unit).Let (\ S) be the set of […]

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October 8, 2017
Regional Math Olympiad 2017

Here are the questions asked in Regional Math Olympiad 2017 and their solutions. Try to solve it first and then see the solutions. Looking for just the problems? Download the PDF here. RMO 2017, Problem 1: Let AOB be a given angle less than \( 180^o \) and let P be an interior point of […]

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October 7, 2017
TIFR 2014 Problem 4 Solution -Checking for Uniform continuity

TIFR 2014 Problem 4 Solution has been written for TIFR entrance preparation series. A problem on uniform continuity from mathematical analysis.

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October 4, 2017
Magnetic Field at Focus of Parabola

Let's solve the problem based on Magnetic Field at Focus of Parabola and learn how to solve it. First, try it yourself, then check your solution. The Problem: An infinite wire carrying current (I) is bent in the form of a parabola. Find the magnetic field at the focus of the parabola. Take the distance […]

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October 1, 2017
Orbit of Planet (KVPY '10)

Let's discuss a problem where we will find the change in the orbit of the planet. Give it a try first, then read the solution.

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September 30, 2017
TIFR 2014 Problem 3 Solution -Function bounds from derivative limits

TIFR 2014 Problem 3 Solution has been written for TIFR entrance preparation series. A problem on bounded function from mathematical analysis.

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September 28, 2017
TIFR 2014 Problem 2 Solution -Continuous Bounded Function

TIFR 2014 Problem 2 Solution has been written for TIFR entrance preparation series. A problem on continuous bounded function from Real analysis.

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September 26, 2017
TIFR 2014 Problem 1 Solution - Negation

TIFR 2014 Problem 1 Solution is a part of TIFR entrance preparation series. The Tata Institute of Fundamental Research is India's premier institution for advanced research in Mathematics. The Institute runs a graduate programme leading to the award of Ph.D., Integrated M.Sc.-Ph.D. as well as M.Sc. degree in certain subjects. The image is a front […]

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September 26, 2017
Angular Velocity of Ice Skater

An ice skater spins at (4\pi )rad/s with her arms extended. If her moment of inertia with arms folded is (80\%) of that with her arms extended, what is her angular velocity when she folded her arms? Discussion: Conservation of angular momentum gives $$ I_1\omega_1=I_2 \omega_2$$ $$ (I_1) (4\pi)=0.8 I_1 \omega_2 $$ Hence, (\omega_2=5\pi)  

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