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| rev | Bot | (Created page with "<div class="d-none"><math> \newcommand{\mathds}{\mathbb}</math></div>Given an Hadamard matrix <math>H\in M_5(\mathbb T)</math>, chosen dephased, <math display="block"> H=\begin{pmatrix} 1&1&1&1&1\\ 1&a&x&*&*\\ 1&y&b&*&*\\ 1&*&*&*&*\\ 1&*&*&*&* \end{pmatrix} </math> prove that the numbers <math>a,b,x,y</math> must satisfy the following equation: <math display="block"> (x-y)(x-ab)(y-ab)=0 </math>") | Apr 20'25 at 1:30 | +399 |