PPSC Economics Topic 13 Mathematics in Economics

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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 equilibrium price and quantity , given the inverse demand and supply functions.
po = 3q +30 and p s = 2q -5

Question # 2

A polynomial equation with degree two a called.

Question # 3

The slope of a horizontal line is.

Question # 4

The set of 'stars in the sky' is an example of

Question # 5

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

Question # 6

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

Question # 7

The signed minor of the matrass A is called.

Question # 8

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

Question # 9

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

Question # 10

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 # 11

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 # 12

If each element of a raw or column is a sum of two elements, the determinant can be expressed as the

Question # 13

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

Question # 14

The determinant of a matrix and that of its transpose are

Question # 15

If any equation involving two variables, such as y -=2x + 1, the variable that appears on the right hand side of the equation is by convention called.

Question # 16

Unknown values in an equation are called.

Question # 17

For any square matrix a of order 'n'a (Ad)A) is equal to.

Question # 18

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

Question # 19

If two sets contains the same number of distinct elements but not the same elements are called.

Question # 20

Who is regarded as the founder of theory of sets.

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