MCQ_SINGLE

If A is a square matrix such that $A^{2}=A$ then $(A-I)^{3}-A$ is equal to :

MCQ_SINGLE

If for a square matrix A, A² - A + I = O then A⁻¹ equals

MCQ_SINGLE

If \(\begin{vmatrix}2x&5\\ 12&x\end{vmatrix}=\begin{vmatrix}6&-5\\ 4&3\end{vmatrix}\) then the value of x is:

MCQ_SINGLE

4. If a matrix $A=\begin{bmatrix}1 & 2 & 3\end{bmatrix}$, then the matrix $AA'$ (where $A'$ is the transpose of A) is:

MCQ_SINGLE

The matrix \(A=\begin{bmatrix}\sqrt{3}&0&0\\ 0&\sqrt{2}&0\\ 0&0&\sqrt{5}\end{bmatrix}\) is a/an:

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