ECAT Mathematics MCQ's Test For Full Book With Answers

ECAT Mathematics MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Polynomial of degree 0 Polynomial of degree 1 Polynomial of degree 2 Polynomial of degree n
2 w11= ______ 0 1 w w<sup>2</sup>
3 w-12= ______ 0 1 w w<sup>2</sup>
4 w4= ______ 0 1 w w<sup>2</sup>
5 w-1= ______ 0 1 w w<sup>2</sup>
6 w15= ______ 0 1 w w<sup>2</sup>
7 x4- 3x3+ 3x + 1 = 0 is called ______ Reciprocal equation Exponential equation Radical equation None of these
8 Reciprocal equation Exponential equation Radical equation None of these
9 41+x+ 41-x= 10 is called Reciprocal equation Exponential equation Radical equation None of these
10 Roots of the equation x2- x = 2 are {2, -1} {1, 0} {2, 1} {-2, 1}
11 Roots of the equation x2+ 7x + 12 = 0 are {3, -4} {-3, 4} {3, 4} {-3, -4}
12 Roots of the equation x2- 7x + 10 = 0 are {2, 5} {-2, 5} {2,5} {-2,-5}
13
14 Cofactor of an element aijis defined by (-1)<sup>i+j</sup>|A| (-1)<sup>i+j</sup>M<sub>ij</sub> (-1)<sup>i+j</sup>M<sup>-1</sup> None of these
15 Minor of an element aijis denoted by M<sub>ij</sub> A<sub>ij</sub> |A| None of these
16 0 1 2 3
17 2 4 6 8
18 The additive inverse of a matrix A is None of these
19 The transpose of a zero matrix is a ______ Column matrix Zero matrix Row matrix Scalar matrix
20 The transpose of a row matrix is a ______ Zero matrix Diagonal matrix Column matrix Row matrix
21 The transpose of a column matrix is a ______ Zero matrix Diagonal matrix Column matrix Row matrix
22 Zero matrix Diagonal matrix Column matrix Scalar matrix
23 3 x 2 2 x 3 3 x 3 2 x 2
24
25 If the matrices A and B are conformable for multiplication then (AB)t= ______ AB A<sup>t</sup>B<sup>t</sup> B<sup>t</sup>A<sup>t</sup> A<sup>t</sup>B
26 An upper triangular matrix A lower triangular matrix A diagonal matrix A null matrix
27
28 If order of A is m x n, then order of Atis m x m n x n m x n n x m
29 Matrices are represented by Natural numbers Real numbers Small letters Capital letters
30 At -A A A-1
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