Question:

Union of A and the universal set is

A.

a

B.

a’

C.

universal set

D.

none of these

Answer» c. universal set

Question:

The slope of a horizontal line is

A.

one

B.

zero

C.

two

D.

three

Answer» b. zero

Question:

Given S1={a,b,c}S2={a,1,2}, then (S1-S2) Π (S2-S1) is

A.

1

B.

a

C.

b

D.

null set

Answer» d. null set

Question:

The matrix A multiplied by its inverse will be a

A.

identity matrix

B.

skew-symmetric matrix

C.

idempotent matrix

D.

adjoint of a matrix

Answer» a. identity matrix

Question:

The set consisting of all the elements which belong to A as well as B is called

A.

union

B.

intersection

C.

complement

D.

partition

Answer» b. intersection

Question:

k (A+B) = kA + kB. This law of matrices is known as

A.

cumulative law

B.

associative law

C.

distributive law

D.

identity law

Answer» c. distributive law

Question:

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

A.

linear equation

B.

non-linear equation

C.

quadratic equation

D.

polynomial of degree two

Answer» a. linear equation

Question:

If the number of elements of the two sets are equal, then they are called

A.

equal set

B.

equivalent set

C.

order set

D.

subset

Answer» b. equivalent set

Question:

Given the supply function qS = 12p – 200 and its inverse function p = 1/12 qS + 50/3, p in theinverse function which is interpreted as the minimum price that sellers are willing to accept for the quantity qS is called

A.

supply price

B.

demand price

C.

equilibrium price

D.

reserved price

Answer» a. supply price

Question:

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

A.

union set

B.

intersection set

C.

universal set

D.

unit set

Answer» c. universal set