Tag inverse

Some Properties About Graphs

To check if a function is symmetric about the origin, replace $y$ with $-y$ and $x$ with $-x$ and see if the equation of the...

Posted by Beetle B. on Thu 09 December 2021

Matrices

Determinant of a 2x2 matrix: $$\left|\begin{array}{ll}a& b\\ c& d\end{array}\right|=ad-bc$$ The minor...

Posted by Beetle B. on Thu 28 October 2021