Question # 1

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

The point at which the graph cuts the x axis is called.

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x- intercept

y - intercept

slope

None of these

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 A = A , then A is

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Symmetric matrix

Skew symmetric matrix

Identity matrix

Orthogonal matrix

If every 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

Not equal

A set containing only one element is termed as

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Unit set

Singleton set

Both a and b

None of these

A negative definite Hessian fulfills the second order conditions for.

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Maximum

Minimum

both maximum and minimum

Mini max

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

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

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Always true

sometimes true

Never true

True subject to some conditions

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.

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Jacobian determinant

Hessian determinant

Discriminant

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

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

Ordered Pairs of two sets are called.

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Elements

Function

Cartesian product

None of the above

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

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

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Singular matrix

Non singular matrix

Square matrix

Column vector

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

A mathematical statement setting two algebraic expressions equal to each other is called.

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Equations

Hypothesis

Inequality

All of above

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

if two sets do not have any common element, then they are called.

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Complement sets

Joint sets

Disjoint sets

None of these

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

A set totality of elements from all possible sets is called.

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Union set

Intersection set

Universal set

Unit set

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