Class 12 Matrices · Conceptual Answer1 Marksmatrix_multiplication
Class 12 Maths · Matrices · Conceptual Answer #84
For A=[1 2 3], find AAᵀ.
✅ Step-by-Step Solution
Final Answer: \(\begin{bmatrix}14\end{bmatrix}\)
- Multiply the 1×3 row by its 3×1 transpose: AAᵀ=[1²+2²+3²]=[14], a 1×1 matrix.
- \(\begin{bmatrix}14\end{bmatrix}\)
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] Multiply the 1×3 row by its 3×1 transpose: AAᵀ=[1²+2²+3²]=[14], a 1×1 matrix.
- [0.5 marks] \(\begin{bmatrix}14\end{bmatrix}\)
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