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

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Question # 1

The signed minor of the matrass A is called.

Question # 2

Matrix multiplication does not satisfy

Question # 3

if in a matrix , the number if rows is the same as the number of columns, it is called.

Question # 4

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

Question # 5

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

Question # 6

An equation in which all variables are raised to the first power is known as.

Question # 7

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

Question # 8

The slope of a horizontal line is.

Question # 9

If two sets contain the same distinct elements, then they are called.

Question # 10

Union of A and a null set is equal is.

Question # 11

AB = BA = 1 , then B is said to

Question # 12

In a matrix , if there is only one row but any number of columns, it is called.

Question # 13

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 # 14

The increase in dependent variable that results when the independent variable increases by one unit in a simple lines. function is called.

Question # 15

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 # 16

A square matrix A, such that A = A ' is called a

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

The determinant of a matrix and that of its transpose are

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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 A square matrix with 1's in its principal diagonal and zeros every where else is.
A. Diagonal matrix
B. Identity matrix
C. Leading diagonal
D. Scalar matrix
3 For any square matrix a of order 'n'a (Ad)A) is equal to.
A. (Ad) A) A
B. Determinant A
C. Rank of A
D. Both a and b
4 The elements in the Horizontal line in a matrix is called.
A. Columns
B. Rows
C. Elements
D. Diagonal
5 A square matrix a such that A2 = a is called.
A. Orthogonal matrix
B. Skew symmetric matrix
C. Idempotent matrix
D. Singular matrix
6 In Vann diagram the universal set is represented by
A. Points within a rectangle
B. Points within a circle
C. Both a and b
D. None of these
7 Given the demand function qo = -8p +2000 and tis inverse p = -1/8 qo + 250 ,p in the inverse function which is interpreted as the maximum price that buyers are willing to pay for the.
A. Supply price
B. Demand price
C. Equilibrium price
D. Reserved price
8 The associative law of union is
A. AU (BUC= (AUB)
B. U C
C. AUB = BUA
D. BUC = BUA
9 The matrix A multiplies by its inverse will b e a.
A. Identity matrix
B. Skew symmetric matrix
C. Idempotent matrix
D. Adjoin of a matrix
10 If B is a subset of A ,then A is a
A. Super set of B
B. Sub set of B
C. Empty set of B
D. Universal set of B

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