1 |
If 4x = 2, then x equals: |
2
1
|
2 |
Which one is exponential equation: |
ax<sup>2</sup> + bx + c = 0
ax + b = 0
2<sup>x</sup> = 16
|
3 |
Which one is radical equation: |
ax<sup>2</sup> + bx + c
ax + b = 0
2<sup>x</sup> = 16
|
4 |
|
c = 0
b = 0, c = 0
|
5 |
Solution set of the equation x2 - 3x + 2 = 0 is |
{-1, 2}
{1, -2}
{-1, -2}
{1, 2}
|
6 |
The other name of quadratic equation is: |
linear equation
1st degree equation
2nd degree equation
none
|
7 |
No. of ways of solving a quadratic equation: |
1
3
2
4
|
8 |
The trivial solution of the homogeneous linear equations is: |
(1, 0, 0)
(0, 1, 0)
(0, 0, 1)
(0, 0, 0)
|
9 |
If a matrix A is symmetric as well as skew symmetric, then: |
A is null matrix
A is unit matrix
A is triangular matrix
A is diagonal matrix
|
10 |
|
scalar matrix
diagonalmatrix
triangularmatrix
none of these
|
11 |
|
scalarmatrix
diagonalmatrix
lower triangularmatrix
uppertriangularmatrix
|
12 |
|
scalar matrix
diagonalmatrix
lower triangularmatrix
upper triangularmatrix
|
13 |
If A is a square matrix, then: |
|A<sup>t</sup>| = A
|A<sup>t</sup>| = -A
|A<sup>t</sup>| = |A|
A<sup>t</sup>= A
|
14 |
If any two rows of a square matrix are interchanged, the determinant of the resulting matrix: |
is zero
is multiplicative inverse of the determinant of the original matrix
is additive inverse of the determinant the original matrix
none of these
|
15 |
If each element in any row or each element in any column of a square matrix is zero, then value of the determinant is: |
0
1
-1
none of these
|
16 |
|
9
-9
-6
none
|
17 |
|
3
-3
1/3
-1/3
|
18 |
If two rows (or two columns) in a square matrix are identical (i.e. corresponding elements are equal), the value of the determinant is: |
0
1
-1
±1
|
19 |
|
5
14
20
6
|
20 |
|
2
-2
5
-5
|