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- 1. Multiple Choice
Find the dot product of the given vectors:
92
0
-92
-120
- 2. Multiple Choice
If the dot product of two vectors is equal to zero, then what do we know about the two vectors?
They are parallel.
They are perpendicular.
They are unit vectors.
They are both zero vectors.
- 3. Multiple Choice
Find the angle between vectors (1,3) and (2,-5).
40.2°
49.7°
139.7°
92.6°
- 4. Multiple Choice
When finding the projection of vector u = (3,2), onto vector v =(5,-5) , which diagram illustrates this situation?
- 5. Multiple Choice
The vector projection of u=(3,2) onto vector v=(5,-5) is
(-½,½)
(½,½)
(½,-½)
(-½,-½)
- 6. Multiple Choice
The scalar projection of vector u=(-7,4) onto vector v=(4, -3) is
8
40
-8
-16
- 7. Multiple Choice
if vector u and vector v are parallel then the projection of u on v is
0
-1
u
v
- 8. Multiple Choice
Find direction angle α for the vector (-8, 3)
159.4°
200.6°
110.6°
249.4°
- 9. Multiple Choice
Find direction angle β for the vector (-8, 3)
58.4°
60.9°
69.4°
88.7°
- 10. Multiple Choice
Find the cross product of (3,4,7) and (4,9,2).
(-55, 22, -9)
(-55, -22, -9)
(71,34, 63)
(-71, -34, -630
- 11. Multiple Choice
If a matrix has 13 elements then it’s possible order is-
1 by 3
3 by 1
1 by 13
none
- 12. Multiple Choice
Find the value of x,y,z if =(x/5 + y/z X 2/xy)=(6/5 2/8)
4,2,0
1,2,3
3,0,5
none
- 13. Multiple Choice
If A is a square matrix of m by n then
m=n
m>n
m<n
none
- 14. Multiple Choice
The no. of possible matrices of order 3 by 3 with each entry 0 or 1 is
27
18
81
512
- 15. Multiple Choice
If transpose of each matrix is equal to itself then it is
Skew Symmetric
Symmetric
Rectangular
none
- 16. Multiple Choice
Which is equal to AA’?
Null Matrix
Identity Matrix
Upper Triangular
None
- 17. Multiple Choice
Which matrix has it’s diagonal elements always zero?
Diagonal Matrix
Scalar Matrix
Skew Symmetric Matrix
Identity
- 18. Multiple Choice
Which is not always a square matrix?
Scalar Matrix
diagonal
Null
Identity
- 19. Multiple Choice
Which is not a type of Matrix?
Triangular
Scalar
Square
None
- 20. Multiple Choice
(AB)’ is equal to-
BA
A’B’
B’A’
None
- 21. Multiple Choice
Product of Matrices is always-
Associative
Commutative
Both
None
- 22. Multiple Choice
If A is symmetric then B’AB is always
Skew Symmetric
Square
Symmetric
None
- 23. Multiple Choice
If A is Skew Symmetric then B’AB is always-
Skew Symmetric
Square
Symmetric
none
- 24. Multiple Choice
If A and B are symmetric Matrices then AB-BA is -
Skew Symmetric
Square
Symmetric
none
- 25. Multiple Choice
If two matrices have same order then these can be-
Added
Subtracted
Multiplied
All of the options
- 26. Multiple Choice
By using Elementary transformation we can find
Inverse
Symmetric matrix
Scalar Matrix
None
- 27. Multiple Choice
Inverse of the matrix A = = is
- 28. Multiple Choice
Inverse can not exist of a matrix if it is-
Square
Non singular
Singular
None
- 29. Multiple Choice
A is any matrix and I is an Identity matrix then AI =
A
I
O
None
- 30. Multiple ChoiceSubtract-5
-8
3
10-9
8
3
25
-8
3
10-5
8
3
2 - 31. Multiple Choice
√-4
-2
-2i
2
2i
- 32. Multiple Choice(5-2i) + (-7+8i)-2+6i12+6i-35-16i2-35 -16i
- 33. Multiple ChoiceWhat does i2 = ?-1√-11-√1
- 34. Multiple Choice(2i)(3i)5i-56i-6
- 35. Multiple ChoiceABCD
- 36. Multiple ChoiceABCD
- 37. Multiple Choice(-3-i)(6-i)-21-7i-19-3i-15-5i-17-9i
- 38. Multiple ChoiceMultiply:
(4 – 3i)(-7 – 2i)A. -23 + 13iB. -23 - 29iC. -34 + 13iD. -34 - 29i - 39. Multiple Choice
How do you write a complex number?
a-bi
a+bi
ai+b
ai-b
- 40. Multiple Choice
(-7+6i)2
49+36i
85
13-84i
13+84i
- 41. Multiple ChoiceWhat is an outcome?The result of an experimentThe chance or likelihood of an eventA fraction, decimal, or a percentAn activity that gives various results
- 42. Multiple Choice
What is the P( not purple) on this spinner?
2/5
1/5
4/5
3/5
- 43. Multiple ChoiceFind the probability of rolling a 7 on a single die.1/67/607/7
- 44. Multiple ChoiceWhat is the probability of spinning green?01/41/23/4
- 45. Multiple ChoiceHow do you write 0.02 as a percent?20%200%2%.02%
- 46. Multiple ChoiceThe letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”?2/75/495/710/49
- 47. Multiple ChoiceThe letters that form the word MATHEMATICS are placed in a bowl. What is the probability of choosing a letter that is a vowel?8/1214/112/114/121
- 48. Multiple ChoiceA set of all possible outcomes is known as -a lista complementa sample spacean event
- 49. Multiple ChoiceYou pick a marble from this bag.
What is the probability you will choose either a black or white marble?3/59/1001/102/5 - 50. Multiple ChoiceA bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?3/103/91/91/3
- Answer choicesTagsAnswer choicesTags