Solved: In 19 and 20, use Theorem 8.10.3 to find values of a and b so that the given
Chapter 8, Problem 20(choose chapter or problem)
In Problems 19 and 20, use Theorem 8.10.3 to find values of a and b so that the given matrix is orthogonal.
\(\left(\begin{array}{cc} 1 / \sqrt{5} & b \\ a & 1 / \sqrt{5} \end{array}\right)\)
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