Question # 1

Union of A and the universal set is

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A

A'

Universal set

None of these

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

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Sun of two determinants

Difference of two determinants

Multiplication of two determinants

Division of two determinants

A variable which is free to take any value we choose to assign to it is called.

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Dependent variable

Independent variable

Endogenous variable

Explained variable

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

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Countable set

Infinite set

Finite set

unit set

The determinant of a matrix and that of its transpose are

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Equal

Zero

One

Negatively related

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

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Intersection of A and B

Union of A and B

Set A and B

None of these

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

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Skew symmetric

Singular

Symmetric

Non singular

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

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Super set of B

Sub set of B

Empty set of B

Universal set of B

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

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Row matrix

Column matrix

Raw vector

Both a and c

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

Matrix multiplication does not satisfy

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Associative law

Distributive law

Commutative law

None of the above

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

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Diagonal matrix

Orthogonal matrix

Unit matrix

Column vector

The signed minor of the matrass A is called.

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Adjoin

Co factor

Minor

Rank

Ordered Pairs of two sets are called.

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Elements

Function

Cartesian product

None of the above

The variable that stands alone on the left hand side of the equation such as y = 2x + 1 is known as.

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Dependent variable

Independent variable

Endogenous variable

Explained variable

The set of all elements belonging to A but not to B is.

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B - A

A - B

A'

B'

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.

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Supply price

Demand price

Equilibrium price

Reserved price

The value of the dependent variable where the graph cuts the y-axis is called.

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X - intercept

Y- intercept

Slope

None of these

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

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Pie diagram

Venn diagrams

Histogram

Ogives

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

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Skew symmetric

Non skew symmetric

Symmetric

Non symmetric

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

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