Question:

If every element of a raw or column of a square matrix A is zero, then the value of thedeterminant is

A.

equal

B.

one

C.

zero

D.

not equal

Answer» c. zero

Question:

In Venn diagram, the universal set is represented by

A.

points within a rectangle

B.

points within a circle

C.

both (a) and (b)

D.

none of these

Answer» a. points within a rectangle

Question:

A function where a variable x can only vary in jumps, is often called

A.

non-linear functions

B.

inverse functions

C.

step functions

D.

all the above

Answer» c. step functions

Question:

The determinant of a matrix and that of its transpose are

A.

equal

B.

zero

C.

one

D.

negatively related

Answer» a. equal

Question:

Given A={a,b,c} and B={a,d,c}, then AUB will be

A.

a,b,c

B.

a,d,c

C.

c,d,a

D.

a,b,c,d

Answer» d. a,b,c,d

Question:

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

A.

equal sets

B.

unequal sets

C.

equivalent sets

D.

all the above

Answer» b. unequal sets

Question:

If a set C contain all the elements which are present in both the sets A and B, then set C is called

A.

union of a and b

B.

intersection of a and b

C.

complement of a

D.

complement of b

Answer» b. intersection of a and b

Question:

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

A.

super set

B.

sub set

C.

empty set

D.

universal set

Answer» a. super set

Question:

If matrix A is of mxn dimension, then Atwill be ——— dimension

A.

nxm

B.

mxn

C.

nxp

D.

mxm

Answer» a. nxm

Question:

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

A.

x-intercept

B.

y-intercept

C.

slope

D.

none of these

Answer» a. x-intercept