To find: the determinant and the inverse of the matrix.
Answer to Problem 68RE
The determinant is
The solution is
Given:
Explanation:
It is given that,
So
Hence,
So the cofactors
Hence,
Hence,
So the solution,
Conclusion:
Thus, the solution is
Explanation of Solution
Given:
It is given that,
So
Hence,
So the cofactors
Hence,
Hence,
So the solution,
Conclusion:
Thus, the solution is
Chapter 10 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
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