English

Inverse Matrix (2x2)

How to find and use the inverse matrix of a matrix (2x2): definition, 2 formulas, 3 examples, and their solutions.

Definition

FormulaA-1

ExampleA = [4 1 / 3 1], A-1 = ?

ExampleA = [6 8 / 3 4], A-1 = ?

FormulaAX = B

Example