Mathbee CBSE Mathbee · CBSE Class 12 Maths
Class 12 Matrices · Assertion Reason1 Marksassertion_reason

Class 12 Maths · Matrices · Assertion Reason #26

Assertion: The matrix [1 2 0 3] is a row matrix of order 1×4. Reason: A matrix having one row and any positive number of columns is called a row matrix.

✅ Step-by-Step Solution

Final Answer: Option (A): Both A and R are true, and R correctly explains A.
  1. It has exactly one row and four columns, so the definition directly proves A.

Master Chapter 3: Matrices

Practise interactive questions, flashcards, visual mind maps, and timed board tests for Matrices.
📘 Chapter Notes & All Exercises 🚀 Open Interactive Workspace →
← Previous Question
For x∈[0,π/2], let A=\(\begin{bmatrix}\cos x & \sin x\\-\sin x &…
Next Question →
Assertion: If \(\begin{bmatrix}x²−4x & x²\\x² &…

More Practice Questions in Matrices

Q1Q2Q3Q4Q5Q6Q7Q8Q9Q10Q11Q12Q13Q14Q15Q16Q17Q18Q19Q20Q21Q22Q23Q24Q25Q26Q27Q28Q29Q30Q31Q32Q33Q34Q35Q36Q37Q38Q39Q40

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…