2x2 Matrix Inverse
Matrix Algebra DS practice problem on Onlearn.
Difficulty: medium.
Topics: Understanding Calculate 2x2 Matrix Inverse, Determinant Calculation, Adjoint Matrix Formula, Singular Matrix Condition, Element-wise Operations, Floating Point Arithmetic, Linear Algebra, Mathematical Foundations, Numerical Methods, Computational Mathematics, Algorithm Design, Matrix Operations, Determinants, Matrix Properties, Linear Transformations, System of Linear Equations.
Write a Python function that calculates the inverse of a 2x2 matrix. Return 'None' if the matrix is not invertible.