Prove the equality using the theorems in determinants

In summary, the basic theorems used in determining equality using determinants are the associative property, multiplicative property, and transitive property. The associative property allows us to manipulate the order of matrices in a determinant without changing the final value, making it easier to prove equality. The multiplicative property allows us to manipulate the values within a determinant without changing the final result, also aiding in proving equality. Additionally, the transitive property can be used to prove equality between two determinants by showing their equality to a third determinant. The process for proving equality using determinants involves manipulating the determinants using these theorems until they are equal in their final form. This may involve multiplying rows or columns by constants, manipulating the order of matrices,
  • #1
plucker_08
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without using any expansion method, prove the equality using the theorems in determinants...
 

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  • #2
Do you know Gaussian Elimination?
 
  • #3
yup...but how can i use that?
 
  • #4
Do you also know how elementary row operations affect the determinant of a matrix?
 
  • #5
yes...

cud u give the solution? thnx!
 

1. What are the basic theorems used in determining equality using determinants?

The basic theorems used in determining equality using determinants are the associative property, the multiplicative property, and the transitive property.

2. How does the associative property help in proving equality using determinants?

The associative property states that the order in which matrices are multiplied does not affect the result. This allows us to manipulate the order of the matrices in the determinant without changing the final value, making it easier to prove equality.

3. How does the multiplicative property help in proving equality using determinants?

The multiplicative property states that multiplying a row or column of a determinant by a constant also multiplies the value of the determinant by that constant. This allows us to manipulate the values within the determinant without changing the final result, making it easier to prove equality.

4. Can the transitive property be used to prove equality between two determinants?

Yes, the transitive property states that if A = B and B = C, then A = C. This means that if we can prove that two determinants are equal to a third determinant, we can use the transitive property to prove that the first two determinants are also equal.

5. What is the process for proving equality using determinants?

The process for proving equality using determinants involves manipulating the determinants using the basic theorems until they are equal in their final form. This may involve multiplying rows or columns by constants, manipulating the order of the matrices, or using the transitive property to compare multiple determinants. By following these steps, we can prove that two determinants are equal.

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