This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Mathematics Chapter 3 Matrices – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Mathematics Chapter 3 Matrices Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The transpose of matrix A is denoted by: A) Adj A. B) |A|. C) A$^{t}$. D) A$^{-1}$. Show Answer Correct Answer: C) A$^{t}$. 2. A diagonal matrix, all of whose diagonal elements are equal, is called: A) Diagonal matrix. B) Scalar matrix. C) Null matrix. D) Unit matrix. Show Answer Correct Answer: B) Scalar matrix. 3. Es aquella matriz cuadrada en donde todos los elementos por encima de la diagonal principal son nulos o ceros. A) Matriz Triangular Inferior. B) Matriz Triangular Superior. C) All the above. D) None of the above. Show Answer Correct Answer: A) Matriz Triangular Inferior. 4. Matrices can be used to A) Store information. B) Solve sets of simultaneous equations. C) Analyse networks. D) Encode information. E) All of the above. Show Answer Correct Answer: E) All of the above. 5. What is the property of a matrix that states A + B = B + A? A) Commutative property of addition. B) Associative property of addition. C) Identity property of addition. D) Distributive property of multiplication. Show Answer Correct Answer: A) Commutative property of addition. 6. Matrix A = 2 x 7, matrix B = 7 x 2 Determine which of the following operations exist. A) A + B. B) AB. C) BA. D) AB$^{t}$. Show Answer Correct Answer: C) BA. 7. Any square matrix can be represented as the sum of a symmetric and askew symmetric matrix. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. Matrices are denoted by? A) Letters. B) Numbers. C) Shapes. D) All of the above. Show Answer Correct Answer: A) Letters. 9. Que es una matriz triangular superior. A) Es una matriz cuadrada en donde todos sus elementos situados por debajo de la diagonal principal son cero. B) Es una matriz cuadrada en donde todos sus elementos situados por encima de la diagonal principal son cero. C) Es una matriz rectangular en donde todos sus elementos situados por debajo de la diagonal son cero. D) Es una matriz 2x3 en donde todos sus elementos situados por debajo de la diagonal son cero. Show Answer Correct Answer: A) Es una matriz cuadrada en donde todos sus elementos situados por debajo de la diagonal principal son cero. 10. Si $A$ $B$ $\left(AB\right)^{-1}=A^{-1}B^{-1}$ A) Verdadero. B) Falso. C) All the above. D) None of the above. Show Answer Correct Answer: B) Falso. 11. Camino es ..... A) Los vertices de un grafo. B) La union de vertices. C) Es una ruta que se debe seguir para llegar de un punto a otro. D) Es una ruta que no repite aristas. Show Answer Correct Answer: C) Es una ruta que se debe seguir para llegar de un punto a otro. 12. The eigenvalue of a real symmetric matrix is A) Real. B) Imaginary. C) Zero. D) None. Show Answer Correct Answer: A) Real. 13. Una matriz diagonal se define como ..... A) Si los elementos situados por encima de la diagonal son 0. B) Si todos los elementos de encima y debajo de la diagonal principal son 0. C) Si los elementos de la diagonal principal son iguales. D) Si los elementos de la diagonal principal son iguales a 1. Show Answer Correct Answer: B) Si todos los elementos de encima y debajo de la diagonal principal son 0. 14. Una matriz fila es aquella que solo tiene una fila A) Verdadera. B) Falso. C) All the above. D) None of the above. Show Answer Correct Answer: A) Verdadera. 15. Si una matriz es de orden 3x2 el rango maximo que puede tener es A) 3. B) 2. C) Ninguna de las anteriores. D) None of the above. Show Answer Correct Answer: B) 2. 16. A diagonal matrix is said to be a scalar matrix if its diagonal elements are not equal, A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. Eigenvalue of a square matrix A are roots of differential equation A) Characteristic equation. B) Integral equation. C) Logical equation. D) None of the above. Show Answer Correct Answer: A) Characteristic equation. 18. Classify the matrix [[1, 0], [0, 1]] by its type. A) Diagonal matrix. B) Symmetric matrix. C) Identity matrix. D) Zero matrix. Show Answer Correct Answer: C) Identity matrix. 19. Integral of x$^{-5/3}$ = A) (-3/8) x$^{-8/3}$. B) (-3/2) x$^{-2/3}$. C) (-5/3) x$^{-8/3}$. D) (5/3) x$^{-2/3}$. Show Answer Correct Answer: B) (-3/2) x$^{-2/3}$. 20. When does a system of equations have infinite solutions? A) When it has no variables. B) When its solution exists. C) When its determinant is zero. D) When it has no solution. Show Answer Correct Answer: C) When its determinant is zero. 21. The point of intersection of the lines:x+3y=5 and x-2y=-5 is A) (-1, -2). B) (1, -2). C) (-1, 2). D) (1, 2). Show Answer Correct Answer: C) (-1, 2). 22. A matrix which have only one ROW is called A) COLUMN MATRIX. B) SCALAR MATRIX. C) DIAGONAL MATRIX. D) ROW MATRIX. Show Answer Correct Answer: D) ROW MATRIX. 23. If A and B are two matrices of orders 3X3, then A+B is of order A) 1X3. B) 3X1. C) 1X1. D) 3X3. Show Answer Correct Answer: D) 3X3. 24. Rectangular matrix:(m= no. of rows, n= no' of columns) A) M not= n. B) M =n. C) M=n=0. D) N=0, m=0. Show Answer Correct Answer: A) M not= n. 25. Question 11 A) 10 0-22-24. B) 46 24-10 16. C) All the above. D) None of the above. Show Answer Correct Answer: A) 10 0-22-24. ← PreviousNext →Related QuizzesClass 12 Mathematics Chapter 3 Matrices Quiz 1Class 12 Mathematics Chapter 3 Matrices Quiz 2Class 12 Mathematics Chapter 3 Matrices Quiz 3Class 12 Mathematics Chapter 3 Matrices Quiz 4Class 12 Mathematics Chapter 3 Matrices Quiz 5Class 12 Mathematics Chapter 3 Matrices Quiz 6Class 12 Mathematics Chapter 3 Matrices Quiz 7Class 12 Mathematics Chapter 3 Matrices Quiz 8Class 12 Mathematics Chapter 3 Matrices Quiz 9Class 12 Mathematics Chapter 3 Matrices Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books