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

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PPSC Economics Topic 13 Mathematics in Economics

00:00
Question # 1

(A+B) = (B+A) this law of matrices is known as.

Question # 2

If a Set C contain all the elements which are present in both the set A and B then set C is called.

Question # 3

The determinant of a matrix and that of its transpose are

Question # 4

The function y = 2x + 1 and x = 1/2 y - 1/2 are said to be.

Question # 5

If B is a subset of A, then AUB =

Question # 6

"Null set is proper subset of all the non nul sets" this statement is.

Question # 7

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.

Question # 8

If matrix A is of m x n dimension, then A will be

Question # 9

Union of A with B is same as union of B with A, that is AUB = BUA is termed as

Question # 10

If B is a subset of A ,then A is a

Question # 11

A set continuing no elements is called.

Question # 12

A function where a variable x can only very in jumps, is often called.

Question # 13

A possible use in economies for the circle of the ellipse is to model.

Question # 14

If A and B are symmetric matrices, then A +B is

Question # 15

If all the elements of a matrix of any order are zero, it is called.

Question # 16

The associative law of union is

Question # 17

If matrix A is matrix of order n x m and B is another matrix of order m x n, then BA will be the matrix of order.

Question # 18

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

Question # 19

A diagonal matrix whose diagonal elements are equal is called.

Question # 20

A matrix with all elements zero other than all the diagonals is called.

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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 A inverse is defined only if A is a
A. Square matrix
B. Column vector
C. Orthogonal matrix
D. Skew symmetric matrix
2 The signed minor of the matrass A is called.
A. Adjoin
B. Co factor
C. Minor
D. Rank
3 A diagonal matrix whose diagonal elements are equal is called.
A. Unit matrix
B. Singular matrix
C. Scalar matrix
D. Non singular matrix
4 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
5 Th transpose of the cofactor matrix is called.
A. Adjoin of the matrix
B. Power of a matrix
C. Minor of the matrix
D. Rank of a matrix
6 If each element of a raw or column is a sum of two elements, the determinant can be expressed as the
A. Sun of two determinants
B. Difference of two determinants
C. Multiplication of two determinants
D. Division of two determinants
7 For any square matrix A of order 'n' a +A is.
A. Skew symmetric
B. Non skew symmetric
C. Symmetric
D. Non symmetric
8 Union of A with A, that is A U A.
A. Complement of A
B. A itself
C. Con not be determined
D. None of these
9 If matrix A is matrix of order n x m and B is another matrix of order m x n, then BA will be the matrix of order.
A. n x m
B. m x n
C. n x n
D. m x m
10 The value of the dependent variable where the graph cuts the y-axis is called.
A. X - intercept
B. Y- intercept
C. Slope
D. None of these

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