11th class Business Mathematics chapter 5 online mcq test with answers for I.Com part 1 Business Mathematics chapter 5(Elements of Matrix Algebra)

Business Mathematics Icom Part 1 Chapter 5 Online Test

Sr. #	Questions	Answers Choice
1	We cannot find the inverse of a:	Square matrix Diagonal matrix Triangular matrix Singular matrix
2	In binary system the base of the system is:	2 5 8 10
3	In decimal system base of system is:	2 5 8 10
4	2 x 10 + 3 x 10^o =.	23 24 25 26
5	A square matrix whose elements below the main diagonal are all zero is called.	Upper triangular matrix Lower triangular matrix Rectangular Row matrix
6	A + 0 is equal to:	0 A O + A None of these
7	If Ax = B then x is	BA<sup>-1</sup> AB B/A A<sup>-1</sup> B
8	I3 x \| I₃ \| = ?	I<sub>3</sub> 0 1 None of these
9	If A = [aij], then A+ is :	[aij] [bji] [aji] [aii]
10	Do AB = BA?	Never Yes May or may not None of these
11	Do (A + B) + C = A + (B + C)?	No Yes May or may not Never
12	If A is a singular matrix then:	A = 0 \|A\| = 0 A ≠ 0 \|A\| ≠ 0
13	Any matrix "A" is a symmetric matrix if:	A = -A A = A<sup>t</sup> A = -A<sup>t</sup> A = A<sup>-t</sup>
14	Order of the matrix having m rows and n columns is:	m + n m - n m / n m x n
15	Cramer's rule is used to solve	System of quadratic equation System of linear equation Any system of equation None