Deepak Gupta

Member for 8 years, 3 months
Last seen more than 2 years ago

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elementary-number-theory

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If $\sqrt{n}$ is not an integer, are there any rational numbers $x$ such that $x^2 = n$?

Sep 9, 2015

If AB is a common tangent to two circles, prove that the circle in AB as a diameter cuts each of the circles orthogonally

Sep 22, 2015

How to apply the binomial theorem to $(a^n - b^n)/(a - b)$?

Dec 17, 2015

Friday the 13th future possible

Sep 21, 2015

prove that $24 \mid a(a^2-1)$

Sep 9, 2015

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Prove that if $7^n-3^n$ is divisible by $n>1$, then $n$ must be even.

Dec 16, 2015

Establish necessary and sufficient condition for specific matrix color configuration

May 16, 2018

Geometry/Trigonometry Determine angle in a Triangle

Sep 2, 2015

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