Class 12Mathematics3 and 4 .Determinants and MatricesExpansion of determinants, Solution of equation in the form of determinants and area of triangle and Equation of Line
EasyLet $A = \begin{bmatrix} 2 & 0 & 3 \\ 4 & 7 & 11 \\ 5 & 4 & 8 \end{bmatrix}$. Then
- A$\operatorname{det} A$ is divisible by $11$
- B$\operatorname{det} A$ is not divisible by $11$
- C$\operatorname{det} A = 0$
- D$A$ is an orthogonal matrix
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