Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
kotonarski
Username
kotonarski
Score
12
Membership
Stats
Questions
2
Answers
1
2 Questions
1 Answers
+1
1
1
+12
The Perfect Square of Balanced Binary Matrices
Let S be the set of 2n \times 2n matrices whose entries are 0 or 1. A matrix M \in S is called good if in every row and every column, the sum of the entries is exactly n.
Prove that the number of good matrices is a perfect square.
●
kotonarski
4 hours ago
+1
1
1
+12
The Riemann Hypothesis Challenge
💥 The Ultimate Mathematical Challenge
The problem is to prove the Riemann Hypothesis (RH), a conjecture about the non-trivial zeros of the analytic continuation of the Riemann Zeta Function, \zeta(s).
The Equation and The Function
read more ..
●
kotonarski
5 hours ago
#2
+12
+1
The measure of angle {RZP} is {67^\circ}.
kotonarski
4 hours ago