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Vizuna's user avatar
Vizuna's user avatar
Vizuna
  • Member for 9 years, 6 months
  • Last seen more than 5 years ago
3 votes

Regarding combinatorics on dice...

2 votes

If $\sin A+\sin B =a,\cos A+\cos B=b$, find $\cos(A+B),\cos(A-B),\sin(A+B)$

2 votes

probability set theory proof

1 vote
Accepted

Proving a Combinatorial Theorem

1 vote

When will the population of the town be aprox $175000$?

1 vote

Area under region $y=log(x)$

1 vote

Proof or counterexample : Supremum and infimum

1 vote

Proving that a function is an increasing function

1 vote
Accepted

How to prove this statement is logically equivalent to a tautology?

1 vote

Combinatorial Proof of a Simple Identity

0 votes

Given a graph $G = (V, E)$, prove $e \leq \frac{n(n-1)}{2}$ for all $n$

0 votes

Labelling the edges of a cube with {1, 2, 3,....,12}

0 votes
Accepted

Find a plane equation from a line and a point

0 votes

Infinite number of pairs of distinct integers $(m,n)$ such that $\sigma(m^2)=\sigma(n^2)$

0 votes

Show $(2n+2)!\geq(n+2)(n+2)!$, $\forall n\in\mathbb{N}$.

0 votes

Solve $\left| \cos { \left( 2x \right) } \right| = \frac { 1 }{ 2 } $

0 votes

Prove the expression using deduction

0 votes

Proving logical equivalences