Question

5
2) Which of the following will give the solution of simultaneous equation by cramer's rule?
a) *
==- Where DO
Dx y
b) x
Dx
, y
D
Where DO
Dy​

Answer 1

Answer:

Using Cramer's Rule to Solve a System of Two Equations in Two Variables

We eliminate one variable using row operations and solve for the other. ...

Now, solve for x.

Similarly, to solve for y,we will eliminate x.

Solving for y gives.

Notice that the denominator for both x and y is the determinant of the coefficient matrix.