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TMA2/MTH101 – Elementary Mathematics I TMA 2 QUESTIONS AND ANSWERS

TMA Quiz Questions

TMA: TMA2/MTH101
MTH101 – Elementary Mathematics I
Mr. Olorunnishola Toyin (Tolorunishola@noun.edu.ng )

1 Solve the set of linear equations by Guassian elimination method : a+2b+3c=5, 3a-b+2c=8, 4a-6b-4c=-2. Find c

A. 1
B. 5
C. 4  
D. 10

2 Solve the set of linear equations by the matrix method : a+3b+2c=3 , 2a-b-3c= -8, 5a+2b+c=9. Sove for b

A. 9
B. -3  
C. 5
D. -4

3 Solve the set of linear equations by Guassian elimination method : a+2b+3c=5, 3a-b+2c=8, 4a-6b-4c=-2. Find b

A. 4
B. -5
C. -3  
D. 5

4 Solve the set of linear equations by Guassian elimination method : x+2y+3z=5, 3x-y+2z=8, 4x-6y-4=-2. Find a

A. -1  
B. 4
C. 5
D. -11

5 Solve the set of linear equations by the matrix method : a+3b+2c=3 , 2a-b-3c= -8, 5a+2b+c=9. Sove for a

A. 2  
B. 4
C. 7
D. 3

6 For a relation R in A. if
(a,b)ϵRand(b,c)ϵR,itimpliesthat(a,c)ϵR
(a,b)ϵRand(b,c)ϵR,itimpliesthat(a,c)ϵR
, then R is a ______ relation.

A. transitive  
B. reflexive
C. symmentric
D. associative

7 For a relation R in A.
if(a,b)ϵRand(b,a)ϵR
if(a,b)ϵRand(b,a)ϵR
,it implies that a =b, then R is an ______ relation.

A. associative
B. anti- symmetric  
. Ccomplex
D. transitive

8 If every element in a set is related to itself,the relation is said to be ________ relation.

A. reflexive  
B. uniform
C. proportional
D. complex

9 If R and S are relations on A. What is R and S.

A. R∪S  
R∪S
B. A is empty
C. R∩A
R∩A
D. S∩A
S∩A

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10 What are the x-values called.

A. domain  
B. function
C. symmetric
D. set

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