Question

Q1. Cramers rule is helps us to find the
solution of
(A) Linear equation
(B) Quadratic equation
(C) Polynomials
(D) All above​

Answer 1

Step-by-step explanation:

Cramer’s Rule for a 3×3 System (with Three Variables)

In our previous lesson, we studied how to use Cramer’s Rule with two variables. Our goal here is to expand the application of Cramer’s Rule to three variables usually in terms of \large{x}x, \large{y}y, and \large{z}z. I will go over five (5) worked examples to help you get familiar with this concept.

To do well on this topic, you need to have an idea on how to find the determinant of a 3⨉3 matrix. So, this is what we are going to do first. Ready?

Answer 2

Cramer's rule helps to find the solution of linear equations.

• It is a formula explicitly used for the solution of a system of linear equations and tells that the system is valid if it has a unique solution.
• It uses determinants to solve a set of linear equations and the equation can have any number of variables.
• One of the drawbacks of Cramer's rule is that it is not valid if the determinant of the set of equations is zero, however this tells that the set of linear equations does not has any solution or an infinite number of solutions.