Math Problem Statement
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Solution
Let's solve the problem step by step.
We are given:
- A matrix
- The inverse of matrix is .
- We need to find matrix such that .
Step 1: Multiplying both sides by
To isolate , we can multiply both sides of the equation by from the right:
Since (the identity matrix), this simplifies to:
Step 2: Performing the matrix multiplication
We need to multiply by .
Performing the multiplication:
This simplifies to:
Step 3: Comparing with the given options
The correct matrix is , which matches option D.
Final Answer: Option D
Would you like more details or have any questions?
Here are 5 related questions you might find useful:
- How do you compute the inverse of a 2x2 matrix?
- What properties does a matrix and its inverse have when multiplied?
- What is the significance of multiplying by an inverse matrix in linear equations?
- How can you verify if a matrix multiplication result is correct?
- What types of matrices are not invertible?
Tip: When performing matrix multiplication, carefully follow the row-by-column method to avoid errors in the calculation!
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Math Problem Analysis
Mathematical Concepts
Matrix Multiplication
Inverse Matrices
Linear Algebra
Formulas
Matrix multiplication formula
Inverse of a 2x2 matrix: A^-1 = (1/det(A)) * [[d, -b], [-c, a]] for a 2x2 matrix A = [[a, b], [c, d]]
Theorems
Inverse Matrix Theorem
Properties of Matrix Multiplication
Suitable Grade Level
Undergraduate or High School (Advanced Level)