PPSC Economics Topic 13 MCQS Test Preparation

If you have completed your higher education in the economy subject and now are looking to start your professional career through PPSC then you are at the right place now. The team of Ilmkidunya offers you online MCQs tests of economics subject. Candidates can find Topic -wise tests and full book tests. For every single Topic  or category, separate sections are designed. Here on this page candidates can find the MCQS PPSC test for Topic  13.

MCQ's Test For PPSC Economics Topic 13 Mathematics in Economics

Try The MCQ's Test For PPSC Economics Topic 13 Mathematics in Economics

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PPSC Economics Topic 13 Mathematics in Economics

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Question # 1

If A is a square matrix of order ' n' and lis the unit matrix of the same order then A 1 is equal to.

Question # 2

If the determinant formed by the elements of the matrix A is equal to zero, then the matrix is.

Question # 3

a possible use in encomia's for the circle or the ellipse is to model.

Question # 4

A positive definite Hessian fulfills the second order conditions for

Question # 5

If the columns of a given matrix A and B are changed into rows and vice versa, the matrix thus obtained is called the.

Question # 6

any number raise to the power zero is always equal to.

Question # 7

In Vann diagram the universal set is represented by

Question # 8

If every elements of a raw or column of a square matrix A is zero, then the value of the determinant .

Question # 9

if A = A , then A is

Question # 10

Matrix multiplication does not satisfy

Question # 11

If A and B are symmetric matrix, then AB- BA is.

Question # 12

The set which contains all the element of the two given sets A and B, avoiding duplication, is called.

Question # 13

Relation between two numbers or variables are called.

Question # 14

A square matrix with 1's in its principal diagonal and zeros every where else is.

Question # 15

if we are told that the two statements y = 3x2 and y = x + 10' are bout true at the same time , they are called.

Question # 16

The determinant of quadratic form is called.

Question # 17

The set of subsets of a set A is called.

Question # 18

A square matrix a of order 'n' is called a diagonal matrix if its non diagonal elements are.

Question # 19

For any square matrix A of order 'n' a +A is.

Question # 20

The associative law of union is

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Economics
13th Chapter

PPSC Economics Chapter 13 Test

Here you can prepare PPSC Economics Chapter 13 (Mathematics For Economics) Test. Click the button for 100% free full practice test.

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PPSC Economics Chapter 13 Important MCQ's

Sr.# Question Answer
1 If A is a square matrix of order ' n' and lis the unit matrix of the same order then A 1 is equal to.
A. A
B. 1A
C. 1
D. Both a and b
2 A function where a variable x can only very in jumps, is often called.
A. Non linear functions
B. Inverse function
C. Step function
D. All of above
3 A matrix with all elements zero other than all the diagonals is called.
A. Diagonal matrix
B. Orthogonal matrix
C. Unit matrix
D. Column vector
4 If every element of a set B is also an elements of A then
A. A is a subset of B
B. B is a subset of A
C. A is not a subset of B
D. B is not a subset of A
5 If the columns of a given matrix A and B are changed into rows and vice versa, the matrix thus obtained is called the.
A. Symmetric matrix
B. Transpose of a matrix
C. Singular matrix
D. Rank of matrix
6 If B is a subset of A, then AUB =
A. B
B. Intersection of A and B
C. A
D. None of these
7 Ordered Pairs of two sets are called.
A. Elements
B. Function
C. Cartesian product
D. None of the above
8 A diagonal matrix whose diagonal elements are equal is called.
A. Unit matrix
B. Singular matrix
C. Scalar matrix
D. Non singular matrix
9 If the determinant formed by the elements of the matrix A is equal to zero, then the matrix is.
A. Skew symmetric
B. Singular
C. Symmetric
D. Non singular
10 A determinant compose of all the second order partial derivatives, with the second order direct partials on the principal diagonal and the second order cross partials off the principal diagonal and which is used to second order condition of optimization is called.
A. Jacobian determinant
B. Hessian determinant
C. Discriminant
D. None of these

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