Muft Shiksha
Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
Class 12MathematicsMatrixIntroduction to matricesEasyLevel 34
0 reads0 ratings0 helpful

If \(A=\begin{bmatrix}1&2&3\\4&5&6\end{bmatrix}\), which is the second row?

Advertisement

Answer and explanation

Correct answer: (4,5,6)

Rows of a matrix are the horizontal lists of entries. For this 2×3 matrix the first row is (1,2,3) and the second (bottom) row is (4,5,6). Option A is the first row; options C and D are columns (first and third column respectively). Exam tip: use the row index (the first index) to identify which horizontal list is the required row.

Related tags

MatricesRowsLinear-AlgebraIdentificationMatrix-Elements

Frequently asked questions

What is the correct answer to this question?

(4,5,6)

Why is this the correct answer?

Rows of a matrix are the horizontal lists of entries. For this 2×3 matrix the first row is (1,2,3) and the second (bottom) row is (4,5,6). Option A is the first row; options C and D are columns (first and third column respectively). Exam tip: use the row index (the first index) to identify which horizontal list is the required row.

Which subject and chapter does this question cover?

This is a Class 12 Mathematics question. Chapter: Matrix. Topic: Introduction to matrices.

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

KEEP PRACTISING

10 more MCQs
  1. 1If a matrix has (3) rows and (4) columns, how many elements does it have?
  2. 2In the matrix \(A=[a_{ij}]_{2\times3}\), what does \(i\) represent?
  3. 3What does (a_{23}) mean in the matrix (A=[a_{ij}])?
  4. 4What type of matrix is (A=\begin{bmatrix}1&0\\0&1\end{bmatrix})?
  5. 5Which matrix is a square matrix?
  6. 6What type of matrix is (A=\begin{bmatrix}5&0\0&5\end{bmatrix})?
  7. 7What is the value of \(a_{12}\) in \(A=\begin{bmatrix}1&2\\3&4\end{bmatrix}\)?
  8. 8What is the value of \(a_{21}\) in the matrix \(A=\begin{bmatrix}6&7&8\\9&10&11\end{bmatrix}\)?
  9. 9When are two matrices (A) and (B) called equal?
  10. 10If \(A=[a_{ij}]_{2\times2}\) and \(a_{ij}=i+j\), what is the value of \(a_{22}\)?
Advertisement