Question:

Relation between two numbers or variables are called

A.

function

B.

binary relation

C.

inverse relation

D.

none of the above

Answer» b. binary relation

Question:

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

A.

row matrix

B.

column matrix

C.

row vector

D.

both a & c

Answer» d. both a & c

Question:

The simplest case of a quadratic function is

A.

y = x2

B.

y = x3

C.

y = x2 + b

D.

y = x2 + bx+ c

Answer» a. y = x2

Question:

The associative law of union is

A.

a u (b u c) = (a u

B.

u c = a u b u c (b) a u b = b u a

C.

a u b = a u c

D.

b u c = b u a

Answer» a. a u (b u c) = (a u

Question:

In matrix expression of linear equation, AX=B, X denotes

A.

coefficient matrix

B.

constants

C.

identity matrix

D.

solution vector

Answer» d. solution vector

Question:

The value of is

A.

32 x

B.

32 x 7

C.

2 x

D.

none of these

Answer» b. 32 x 7

Question:

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

A.

b – a

B.

a – b

C.

a’

D.

b’

Answer» b. a – b

Question:

which method is used for finding inverse of a matrix

A.

gauss elimination method

B.

henrich standard method

C.

co-factor method

D.

both a & c

Answer» d. both a & c

Question:

The set of “stars in the sky” is an example of

A.

countable set

B.

infinite set

C.

finite set

D.

unit set

Answer» b. infinite set

Question:

(A+B) = (B+A). this law of matrices is known as

A.

cumulative law

B.

associative law

C.

distributive law

D.

identity law

Answer» a. cumulative law