Vikram
Reputation
2,947
Next privilege 3,000 Rep.
 Feb 22 accepted Find the factors of $(a+b+c)^3-(b+c-a)^3-(c+a-b)^3-(a+b-c)^3$ Feb 13 accepted How to form 3 groups and allocate them different district? Jan 22 accepted Why $\{ \emptyset \}$ is not a subset of $\{ \{\emptyset \} \}$ Dec 29 accepted Elementary number theory equation simplification Dec 2 accepted Prove that $n$ is prime Nov 28 accepted Find two solutions of $299x+247y=13$ Oct 16 accepted Show that it is false that $a > b$ implies $a\nmid b$. Jun 16 accepted Sine of an obtuse angle May 23 accepted Why $x=u+v$ substitution works? May 21 accepted Use quadratic formula to find upper and lower limits of an expression May 19 accepted Prove that $(n!)^{2}>(n)^n$ using inequality May 14 accepted Combination problem approach when at least one of one type must be included Dec 1 accepted Number of selection containing at least one of each kind. Nov 30 accepted Unequal distribution of n things among p persons Nov 19 accepted Dividing one equation by another equation Oct 27 accepted Fast algebraic expansion Oct 17 accepted Dividing x by (1+x) the unusual way Sep 27 accepted To translate truth table into English and decipher logical argument it makes May 26 accepted Example of vector space May 23 accepted Find the sum of the series $2^{-\frac{1}{n}} - 2^{-\frac{1}{n+1}}$