ECAT Mathematics Online Test With Answers

image
image
image

ECAT Mathematics Online Test

Sr. # Questions Answers Choice
1 Diagonal matrix Scalar matrix Triangular matrix Identity matrix
2 If A is any matrix then its additive inverse is A A<sup>-1</sup> A<sup>t</sup> -A
3
4 The transport of a rectangular matrix is a Square matrix Rectangular matrix Row matrix Column matrix
5 The transport of a square matrix is a Row matrix Column matrix Square matrix Null matrix
6 The transport of a null matrix is Row matrix Column matrix Square matrix Null matrix
7
8 Two matrices A and B are conformable for the product AB if Both A and B are square Both A and B are symmetric Number of rows of A = number of columns of B Number of columns of A = number of rows of B
9 3 x 1 1 x 3 3 x 3 1 x 1
10 In order of A is m x n and order of B is n x p then order of AB is m x m n x n m x p p x m
11 Square matrix Row matrix Symmetric matrix Null matrix
12 Hermitian matrix Skew-hermitian matrix Symmetric matrix Identity matrix
13 Identity matrix Diagonal matrix Null matrix Hermitian matrix
14 A square matrix A for which At= -A is called a Column matrix Symmetric matrix Skew-symmetric matrix Row matrix
15 A square matrix A for which At= A is called a Column matrix Symmetric matrix Skew-symmetric matrix Row matrix
16 Scalar matrix Identity matrix Null matrix Symmetric matrix
17 A diagonal matrix in which the diagonal elements are equal is called a Null matrix Identity matrix Scalar matrix Row matrix
18 A square matrix all of whose elements except the main diagonal are zeros is called a Null matrix Singular matrix Symmetric matrix Diagonal matrix
19 A matrix with a single column is called Column matrix Row matrix Identity matrix Null matrix
20 A matrix with a single row is called a Column matrix Row matrix Null matrix Identity matrix
21 A matrix in which the number of rows is equal to the number of columns is called a Diagonal matrix Rectangular matrix Square matrix Scalar matrix
22 A matrix in which the number of rows is not equal to the number of columns is called a Diagonal matrix Rectangular matrix Square matrix Scalar matrix
23 2 x 2 2 x 3 3 x 2 3 x 3
24 2 x 2 2 x 3 3 x 2 3 x 3
25 The order of the matrix [1 2 3] is 1 x 1 3 x 3 3 x 1 1 x 3
26 If there are m rows and n columns in a matrix then its order is m x n m x m n x n n x m
27
28 Biconditional Implication Antecedent Hypothesis
29 Conclusion Implication Antecedent Hypothesis
30 If we have a statement "if p then q" then q is called Conclusion Implication Unknown Hypothesis
Download This Set
×