Question:

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

A.

complement sets

B.

joint sets

C.

disjoint sets

D.

none of these

Answer» c. disjoint sets

Question:

For a matrix minor of element M33 =25, the cofactor is

A.

-25

B.

25

D.

33

Answer» b. 25

Question:

The slope of isocost line is the ratio of

A.

quantities

B.

input prices

C.

costs

D.

product prices

Answer» b. input prices

Question:

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

A.

a is a subset of b

B.

b is a subset of a

C.

a is not a subset of b

D.

b is not a subset of a

Answer» b. b is a subset of a

Question:

If the value of the Jacobian determinant = 0, the equations are

A.

functionally dependent

B.

functionally independent

C.

linearly independent

D.

none of these

Answer» a. functionally dependent

Question:

A Jacobian determinant is used to test

A.

linear functional dependence between equations

B.

non-linear functional dependence between equations

C.

both linear and non-linear functional dependence between equations

D.

none of these

Answer» c. both linear and non-linear functional dependence between equations

Question:

A set containing only one element is termed as

A.

unit set

B.

singleton set

C.

both (a) and (b)

D.

none of these

Answer» c. both (a) and (b)

Question:

The signed minor of the matrix A is called

A.

adjoint

B.

co-factor

C.

minor

D.

rank

Answer» b. co-factor

Question:

When the demand for a good is given by Q=50-P, the maximum amount that would bedemanded at nil price

A.

1

B.

0

C.

40

D.

50

Answer» d. 50

Question:

commutative law of matrix subtraction is

A.

a+b=b+a

B.

a-b=b-a

C.

a-b= -b+a

D.

a+b=a-b

Answer» c. a-b= -b+a