Question

What is Cramers rule?​

Answer 1

Answer:

Cramer's Rule is a method that uses determinants to solve systems of equations that have the same number of equations as variables. Consider a system of two linear equations in two variables. If we are solving for x, the x column is replaced with the constant column.

Answer 2

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In linear algebra, Cramer's rule is an explicit formula for the solution of a system of linear equations with as many equations as unknowns, valid whenever the system has a unique solution. ... Cramer's rule can also be numerically unstable even for 2×2 systems.