Find the Value of the Determinant $$\left| \begin{array} { l l } a & b \\b & a\end{array} \right|$$

question 157

Multiple Choice

Find the value of the determinant.
- $$\left| \begin{array} { l l } a & b \\b & a\end{array} \right|$$

• A) \(a ^ { 2 } - b ^ { 2 }\)
• B) \(a ^ { 2 } + b ^ { 2 }\)
• C) \(2 a b\)
• D) 0

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