### Matrices 1. The idea of matrices was introduced by a famous mathematician ___________. a) Arther kelly b) Mac Arther c) Arther Nicol 2. Arther kelly gave the idea of matrices in ________ a) 1875 b) 1857 c) 1957 3. A matrice's elements are written in the form of ________ a) rows or columns b) rows only c) rows and columns d) columns only 4. The matrices are denoted by ________letters a) mix b) small c) capital 5. Elements of a matrice are denoted by ________ letters a) capital b) small 6. Horizontally elements are said to form _____________ a) rows b) cells c) columns 7. Vertically arranged elements are said to form __________ a) columns b) rows c) cell 8. The order of a matrix is _______ a) m/n b) m=n c) m x n 9. m is used for ________ a) columns b) rows 10. n is used for _________ a) columns b) cell 11. Matrices whose corresponding elements are equal are called _______ matrices a) opposite b) equal c) similar 12. The number of rows in A = [1 3] is ______ a) 3 b) 1 c) 2 13. The number of columns in A = [9 4] is _________ a) 1 b) 4 c) 2 d) 3 14. A matrix having only one column is called _________ matrice a) row b) double c) single 15. A matrix having only one column is called ________ matrice Click here to enter your answer! 16. A = [a b] this is a _________ matrice a) triangular b) rectangular c) angular 17. A =  this is a _________ matrice Click here to enter your answer! 18. O= [0 0] is a ___________ matrice a) null or zero b) zero c) null 19. A diagonal matrice having equal elements in its diagonal is called a __________ matrice Click here to enter your answer! 20. I =  this is an ___________ matrice Click here to enter your answer! 21. Negative matrice of A = [-2 3] is ______ Click here to enter your answer! 22. In real numbers 0 is the _________ inverse Click here to enter your answer! 23. Transpose of a matrice A is denoted by ___________ Click here to enter your answer! 24. Inverse of a singular matrive is possible a) False b) True 25. If IAI = 0 then A is a ________ matrice Click here to enter your answer!

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