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May 24, 2019
Polynomials (Algebra) - I.S.I. 2019 : Problem #7
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May 24, 2019
Number Theory - Working backward - C.M.I UG -2019
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May 24, 2019
Real numbers problem - C.M.I - U.G - 2019
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May 23, 2019
Calculus Problem - I.S.I 2019 Subjective Problem -4
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May 22, 2019
Sum Of 1'S C.M.I UG-2019 Entrance

Sum of 1's: Algebra Problem Find the sum: 1+111+11111+1111111+…..1….111(2k+1) ones  Useful points: Try with Hints ... Other Useful Links GCD and Bezout Theorem Gauss Trick of Algebra Related Program Subscribe to Cheenta at YouTube

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May 22, 2019
Geometry problem - CMI Entrance 2019

Understand the problem Let O be a point inside a parallelogram ABCD such that \(\angle AOB+\angle COD =180\) prove that \(\angle OBC =\angle ODC\) Useful Points Suggested book Challenges and Thrills in Pre-College Mathematics Try with Hints... Other Useful Links GCD and Bezout Theorem Gauss Trick of Algebra Related Program Subscribe to Cheenta at YouTube

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May 22, 2019
Triangle in complex plane - ISI 2019 Obj P8

This problem from ISI Entrance 2019 is an interesting application of complex numbers in geometry. Try your hands on this!

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May 22, 2019
Four Points on a Circle, ISI Entrance 2017, Subjective Problem no 2
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May 19, 2019
Product of Digits, ISI Entrance 2017
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May 17, 2019
Three Primes, ISI Subjective Entrance 2017
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