CUET · MATHS · PYQ PAPER 2023
Match List - I with List - II. If \(A=\left|\begin{array}{ccc}3 & -2 & 3 \\ 2 & 1 & -1 \\ 4 & -3 & 2\end{array}\right|\)
| List - I | List - II |
| (A) \(M_{23}\) | (I) -17 |
| (B) \(A_{32}+a_{13}\) | (II) -1 |
| (C) \(A\) (Determinant value) | (III) 0 |
| (D) \(a_{13} A_{12}+a_{23} A_{22}+a_{33} A_{32}\) | (IV) 12 |
- A \((A)-(I I),(B)-(I),(C)-(I V),(D)-(I I I)\)
- B \((A)-(I I),(B)-(I V),(C)-(I),(D)-(I I I)\)
- C \((A)-(I),(B)-(I I),(C)-(I I I),(D)-(I V)\)
- D \((A)-(I I I),(B)-(I V),(C)-(I I),(D)-(I)\)
Answer & Solution
Correct Answer
(B) \((A)-(I I),(B)-(I V),(C)-(I),(D)-(I I I)\)
Step-by-step Solution
Detailed explanation
\((A)\) \(M_{23} = \left|\begin{array}{cc}3 & -2 \\ 4 & -3\end{array}\right| = (3)(-3) - (-2)(4) = -9+8 = -1\) \((B)\) \(a_{13}=3\) \(M_{32} = \left|\begin{array}{cc}3 & 3 \\ 2 & -1\end{array}\right| = (3)(-1) - (3)(2) = -3-6 = -9\) \(A_{32} = (-1)^{3+2} M_{32} = (-1)(-9) = 9\)…
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