# TMA1/MTH101 – Elementary Mathematics I TMA 1 QUESTIONS AND ANSWERS

## TMA Quiz Questions

TMA: TMA1/MTH101

MTH101 – Elementary Mathematics I

Mr. Olorunnishola Toyin (Tolorunishola@noun.edu.ng )

1 Any bunch of numbers is a _____ ,so long as the numbers come in pairs.

A. group

B. domain

C. axiom

D. relation

2 A ___ is just a set of ordered pairs.

A. sets

B. functions

C. partition

D. relation

3 Let N ={1,2,3,4,5,â€¦â€¦â€¦.}, E = {2,4,6,â€¦â€¦.}, F = {1,3,5,â€¦â€¦..}. Then, {E,F} is a _____ of N.

A. functions

B. partition

C. relation

D. sets

4 A relation is a _____ ordering,if it is reflexive,anti- symmetric and transitive.

A. partial

B. complex

C. group

D. equal

5 A relation is a set of an ______ relation,if it is reflexive,transitive and symmetric.

A. simple

B. equal

C. balance

D. equivalence

6 Solve for x and y: 3x + 4y = 9, 2x + 3y =8

A. x = 7.5, y = – 4. 5

B. x = 7.0, y = – 4. 5

C. x = 4.5, y = – 7. 5

D. x = 7.5, y = – 4. 1

7 If A.x=

λx

λx

,where A=

∣∣∣∣211232−212∣∣∣∣

|22−2131122|

,determine the eigen values of the matrix A, and an eigen vector corresponding to each eigen value. If

λ=2

,what is b

A. {0,1,0}

B. {3,0,2}

C. {2,0,1}

D. {0,1,1}

8 If A.x=

λx

,where A=

∣∣∣∣211232−212∣∣∣∣

,determine the eigen values of the matrix A, and an eigen vector corresponding to each eigen value. If

λ=4

,what is c

A. {2,3,0}

B. {-2,1,1}

C. {2,1,1}

D. {3,2,6}

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

A. 2

B. 1

C. 5

D. 7

10 If A.x=

λx

,where A=

∣∣∣∣211232−212∣∣∣∣

,determine the eigen values of the matrix A, and an eigen vector corresponding to each eigen value. If

λ=1

,what is a

A. {-2,1,0}

B. {3,5,2}

C. {1,0,0}

D. {2,1,4}

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