Question # 1

The set of subsets of a set A is called.

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Power set of A

Complement of A

Both a and b

None of these

The signed minor of the matrass A is called.

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Adjoin

Co factor

Minor

Rank

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

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Production possibility curve

Demand curve

Iosco line

Supply curve

The simplest form of rectangular hyperbola is

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y = 1/x

y = x2

y = x-2

y = x3

AB = BA = 1 , then B is said to

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Ad joint of matrix of A

Inverse matrix of A

Determinant of A

Cofactor of a

A set containing all the elements of the universal set except those of set A is called.

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Complement of set A

Complement of universal set

Union of A and universals set

Universal set itself

The determinant of quadratic form is called.

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Jacobian determinant

Hessian determinant

Discriminant

None of these

A determinant composed of all the first order partial derivatives of a system of equations, arranged in ordered sequence is called.

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Hassian determinatn

Jacobian determiant

Discrimianant

First order determinant

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

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A

1A

1

Both a and b

if A = A , then A is

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Symmetric matrix

Skew symmetric matrix

Identity matrix

Orthogonal matrix

Given the demand and supply cautions qo = -8p + 2000 and qs = 12 p - 200 respectively the equilibrium price.

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p = 100

p = 110

p = 120

p = 140

The associative law of union is

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AU (BUC= (AUB)

U C

AUB = BUA

BUC = BUA

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

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Linear equation

Non linear equation

Quadratic equation

Polynomial of degree two

The equilibrium price and quantity , given the inverse demand and supply functions.

po = 3q +30 and p s = 2q -5

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p = 9 and q = 7

p = 10 and q = 7

p = 9 and q = 8

p = 7 and q = 9

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

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Equal

One

Zero

None of these

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

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Union of A and B

Intersection of A and B

Complement of A

Complement of B

If every element of a set B is also an elements of A then

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A is a subset of B

B is a subset of A

A is not a subset of B

B is not a subset of A

Th transpose of the cofactor matrix is called.

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Adjoin of the matrix

Power of a matrix

Minor of the matrix

Rank of a matrix

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

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Equal sets

Unequal sets

Equivalent sets

All of the above

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.

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n x m

m x n

n x n

m x m

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