CBSE Class 12 Mathematics 2026 Supplementary Paper 65(B)/7 · Q21 Marksmatrix_order
CBSE Class 12 Mathematics 2026 Supplementary Paper 65(B)/7 · Question 2 (Matrices)
Find the order of [5 4 1][[1,2,3],[3,0,1],[1,4,5]](2,0,1)ᵀ.
✅ Step-by-Step Solution
Final Answer: 1×1
- The first product is 1×3. Multiplying by a 3×1 column gives a 1×1 matrix.
Master Chapter 3: Matrices
Practise interactive questions, flashcards, visual mind maps, and timed board tests for Matrices.
← Previous Question
If det([[3,x,−4],[5,−6,0],[−7,8,1]])=0, find x.
Next Question →Classify B=[[0,0,7],[0,7,0],[−7,0,0]].
All Questions in CBSE Class 12 Mathematics 2026 Supplementary Paper 65(B)/7
Related Questions in Matrices
Class 12 Matrices · Mcq Single Correct
Let A be a 2×2 matrix with aᵢⱼ=1 for i≠j and 0 for i=j. Find A².
Class 12 Matrices · Mcq Single Correct
Let A=\(\begin{bmatrix}\cos\alpha & -\sin\alpha\\\sin\alpha & \cos\alpha\end{bmatrix}\)…
Class 12 Matrices · Mcq Single Correct
If \(\begin{bmatrix}2a+b & a−2b\\5c−d & 4c+3d\end{bmatrix}\)=\(\begin{bmatrix}4 & -3\\11 &…
Class 12 Matrices · Mcq Single Correct
How many 3×3 matrices have every entry either 2 or 0?
Class 12 Matrices · Mcq Single Correct
Find x+y for constants x,y such that the identity A⁻¹=xA+yI holds for every real square…
Class 12 Matrices · Mcq Single Correct
If \(\begin{bmatrix}2 & 0\\5 & 4\end{bmatrix}\)=P+Q, where P is symmetric and Q…