Math Problem Statement
answer system 1 using cramer's rule
Solution
To solve the first system using determinants (Cramer's Rule), let's first rewrite the system of equations in standard form. The system is:
Rearrange each equation:
Now, we have the system in the form , where is the matrix of coefficients, is the vector of variables, and is the constant matrix.
The coefficient matrix , variable vector , and constant vector are:
To find the values of , , and using Cramer's Rule, we calculate the determinant of and the determinants of matrices obtained by replacing each column of with .
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Compute :
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Compute : Replace the first column of with .
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Compute : Replace the second column of with .
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Compute : Replace the third column of with .
Once we have each determinant, apply Cramer's Rule:
I will calculate these determinants and provide the solution values for , , and .The solution to the system using Cramer's Rule is:
Would you like further details on any step or have any questions?
Here are five related questions to deepen your understanding:
- How does Cramer's Rule work with a 3x3 system in terms of determinant replacement?
- What would happen if the determinant of were zero?
- Can Cramer's Rule be used for systems larger than 3x3, and what challenges might arise?
- How can we verify the solution obtained from Cramer's Rule by substituting back into the original equations?
- Are there alternative methods to solve this system of equations?
Tip: Cramer's Rule is only applicable when the determinant of the coefficient matrix is non-zero, ensuring a unique solution.
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Math Problem Analysis
Mathematical Concepts
Linear Algebra
Systems of Linear Equations
Determinants
Cramer's Rule
Formulas
Determinant of a 3x3 matrix: det(A) = a(ei − fh) − b(di − fg) + c(dh − eg)
Cramer's Rule: x = det(A_x)/det(A), y = det(A_y)/det(A), z = det(A_z)/det(A)
Theorems
Cramer's Rule
Suitable Grade Level
Grades 11-12 or College Level
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