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Questions  >>  JEEMAIN and NEET  >>  Mathematics  >>  Class12  >>  Determinants
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Q)

If a square matrix A is such that $AA^T=I=A^TA$ then $|A|$ is equal to

$\begin{array}{1 1}(A)\;0&(B)\;\pm 1\\(C)\;\pm 2&(D)\;\text{None of these}\end{array}$

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