Lecturer Mathematics MCQs |

Mathematics MCQs for PPSC FPSC KKPSC BPSC SPSC NTS Test 16

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There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
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Test Instructions:-
Test Name	Lecturer Mathematics
Subject	Math Test 16
Test Type	MCQs Mathematics
Total Questions	25
Total Time	20 Minutes
Total Marks	100

You have 20 minutes to pass to the quiz.

Lecturer Mathematics Online Test No. 16

1 / 25

A group having commutative property is called a/an:

Groupoid

Group

Monoid

Abelian group

2 / 25

If for a square matrix A=[a_ij] ,a_ij =0 ∀ i > j then A is called _____ matrix.

Upper triangle

Lower triangle

Rectangular

Column

3 / 25

The solution set of x⁴ -6x² +8=0 is:

(2,-2)

(1,-1)

(2,2)

(-2,-2)

4 / 25

The sum of the product of each element of a row (or column ) and its cofactor is called ..

Minor

Inverse

Determinant

Adjoint

5 / 25

The set {E,O} is closed under:

Ordinary addition

Ordinary division

Square root

All of these

6 / 25

If rank of A =Rank of Ab <no of variables then system has:

Unique

Trivial

Inconsistent

Infinite many solutions

7 / 25

To solve x² =6x-576=0 by completing square method ,the term added on both sides is:

8 / 25

A function which is both (1-1) and onto is called:

Surjective function

Injective function

Bijective function

Into function

9 / 25

If a Matrix A has m rows and n columns such that m ≠ n than A is called:

Square matrix

Rectangle matrix

Row matrix

column Matrix

10 / 25

The solution set of 5x² -5x+8=0 is:

(± 1,±i)

(±i, 0)

(±1,0)

(±1,±i,0)

11 / 25

If G={1,-1,i,-i} is a group under multiplication then inverse of i is:

-1

-i

12 / 25

The solution set of 2^x +2^-x+6 -20=0 is

{4,6}

{-2,4}

{1,2}

{2,5}

13 / 25

In a reciprocal equations, the coefficients of the term equidistant from the beginning and end are:

zero

different

equal in magnitude

reciprocal of each other

14 / 25

A={ϕ} is an example of:

Empty set

Singleton set

Super set

Sub set

15 / 25

The power Set P(S) of a set S w.r.t union with identity element:

None

16 / 25

One of the solution of x+y+z is:

(1,1,1)

(0,0,0)

(10,0)

(1,0,1)

17 / 25

The power Set P(S) of a set S w.r.t intersection is a:

Groupoid

Semi-Group

Monoid

Group

18 / 25

If A matrix is any square matrix then AA^t is:

symmetric

skew-symmetric

hermitian

skew-hermitian

19 / 25

p ^ q represents:

Disjunction

Conjuction

Conditional

Quantifier

20 / 25

If row rank of the augmented matrix of coefficients are same and are equal to the number of variable then system has:

Unique solution

Many solutions

No solution

Non-singular solution

21 / 25

For a skew symmetric matrix ,the diagonal elements are always.

positive

negative

Zero

Unity

22 / 25

A monoid with inverse is called a/an:

Groupoid

Monoid

Group

Abelian group

23 / 25

If a matrix A of order 2x3 then or of At A is:

2x2

3x3

2x3

3x2

24 / 25

The remainder obtained when f(x) is divided by x-a is same as the value of the polynomial f(x) at:

x=0

x=a

x=1

x=-a

25 / 25

The solution of an equation are also called its:

Roots

Factors

Reminder

Both a and b

Your score is

The average score is 0%

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