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प्रश्न
If \(B\) is the inverse of \(A\), which statement must also be true?
विकल्प
\(A\) is also the inverse of \(B\).
\(B\) is the identity matrix.
\(A\) does not possess an inverse.
\(A\) is a rectangular matrix.
MCQ
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उत्तर
If \(B=A^{-1}\), then \(AB=BA=I\). These same two equalities show that \(A\) is the inverse of \(B\), so \(A=B^{-1}\).
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