NVAMediumJEE Main 2026 · 22 January, Shift 1Inverse & Adjoint of a Matrix

Mathematics Question from JEE Main 2026 · 22 January, Shift 1

Let AA be a 3×33 \times 3 matrix such that A+AT=OA + A^{T} = O. If

A[110]=[332],A2[110]=[31924]A \begin{bmatrix} 1 \\ -1 \\ 0 \end{bmatrix} = \begin{bmatrix} 3 \\ 3 \\ 2 \end{bmatrix}, \quad A^{2} \begin{bmatrix} 1 \\ -1 \\ 0 \end{bmatrix} = \begin{bmatrix} -3 \\ 19 \\ -24 \end{bmatrix}

and

det ⁣(adj(2adj(A+I)))=2α3β11γ\det\!\big(\operatorname{adj}(2\,\operatorname{adj}(A+I))\big) = 2^{\alpha}\,3^{\beta}\,11^{\gamma}

where α,β,γ\alpha, \beta, \gamma are non-negative integers, then the value of α+β+γ\alpha + \beta + \gamma is _____.

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