# mcq on matrices class 12

Answer: Answer: Answer: (b) 10 Multiple choice questions and answers on Matrices and Determinants quiz answers PDF 1 to learn math certificate online course. Class 12 Mathematics chapter wise solution for (Maths part 1 and part 2) all the chapters can be downloaded from our website and myCBSEguide mobile app for free. Free PDF Download of CBSE Maths Multiple Choice Questions for Class 12 with Answers Chapter 4 Determinants. (d) 1 (a) 2 (a) â157 Answer: (a) 4 Answer: (b) 3 (c) \(\frac{1}{\sqrt{2}}(\hat{i}+\hat{j})\), Question 25. If a matrix has m rows and n columns, then it is known as the matrix of order m x n. Depending upon the order and elements, matrices are classified as: AÂ column matrixÂ is a m Ã 1Â matrix, consisting of a singleÂ columnÂ of m elements. IfÂ \(\begin{bmatrix} x+3 & z+4 & 2y-7\\ -6 & a-1 & 0\\ b-3 & -21 & 0 \end{bmatrix} = \begin{bmatrix} 0 & 6 & 3y-2 \\ -6 & -3 & 2c +2\\ 2b+4 & -21 & 0 \end{bmatrix}\), then find the value of a, b, c, x, y, and z. units (b) 25 (d) Equilaterala triangle, Question 39. Maths MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. (a) 3 sq. The numbers in the array are called the entities or the elements of the matrix. The topics covered in matrices for class 12 include the following topics: A matrix is a function which consists of an ordered rectangular array of numbers. Answer: (d) \(-\hat{i}-\hat{j}\) (d) 5â3 As an example, the left matrix has two rows and 3 columns, whereas the ideal matrix has three rows and 2 columns. If a, b, c are three non-coplanar vectors, then (a + b + c). Answer: (a) 4â3 The value of x is Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board (b) \(\frac{3}{2}\) (c) \(\frac{\pi}{2}\) (a) Î» = -2, Question 19. (b) 3 If a and b are two unit vectors inclined to x-axis at angles 30Â° and 120Â° respectively, then |a + b| equals (d) â369 Here we have covered Important Questions on Matrices for Class 12 Maths subject.. Maths Important Questions Class 12 are given below.. Short Answer Type Questions You can prepare effectively for the Class 12 Maths Exam as they help you be familiar with the kind of questions appearing in the exam. Go through the notes on class 12 matrices to score good marks in the examinations. (c) â229 b) These multiple choice questions for Matrices and Determinants Class 12 will help to improve analytical and complex problem decoding skills. (d) -25, Question 23. (d) Equilaterala triangle (a) \(\frac{\sqrt{23}}{6}\) (b) x= 1.2, y = -4, z = -10 (c) â213 Students can practice CBSE Class 12 Maths MCQs Multiple Choice Questions with Answers to â¦ (a) \(\frac{\pi}{3}\), Question 27. unit If the angle between \(\hat{i}+\hat{k}\) and \(\hat{i}+\hat{j}+a \hat{k}\) is \(\frac{\pi}{3}\), then the value of a is If u, v and w are three non-coplanar vectors, then (u + v – w). (b) Right triangle If the vectors \(2 \hat{i}-3 \hat{j}, i+\hat{j}-\hat{k}\) and \(3 \hat{i}-\hat{k}\) form three concurrent edges of a parallelopiped, then the volume of the parallelopiped is Answer: Matrices Class 12 Maths MCQs Pdf. (c) x = -1/2, y = 4, z = 10 (d) [abc] Mathematics MCQ E-Book for Matrices: Matrices is an essential topic asked in all Board and various Engineering & Architecture Entrance examinations like JEE Main, JEE Advanced, BITSAT, GATE, WBJEE and NATA. (a) -21 (d) Both (a) and (b), Question 37. (c) 8 Which of the following represents equal vectors? Which of the following represents coinitial vector? (c) -3, Question 54. The vectors \(\lambda \hat{i}+\hat{j}+2 \hat{k}, \hat{i}+\lambda \hat{j}-\hat{k}\) and \(2 \hat{i}-\hat{j}+\lambda \hat{k}\) are coplanar if (d) Î± = Â±1, Î² = 1, Question 40. (d) 3u.v Ã w (a) \(\cos ^{-1}(1 / \sqrt{3})\) (b) â2 Matrices, MCQ, Notes, NCERT solutions, R. D Sharma solutions, sample papers & previous year papers for Class 12th Mathematics CBSE Board |a| = 2â2, |b| = 3 and angle between a and b is \(\frac{\pi}{4}\), is Answer: Here are the Matrices Class 12 Notes that will help in IIT JEE and boards preparation. (a) Isosceles triangle (c) \(\hat{i}+2 \hat{j}+3 \hat{k}\) (d) All of these, Question 41. CBSE Class 12th Mathematics Board Examination 2020 MCQâs: Question 1- If A is a square matrix of 3 x 3 order, where |A| = 3, then find out the value of |adjA|. (b) \(\frac{1}{3}\) cu. It is also called a column vector. (b) b Ã c (c) 16 sq. 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