Week 5 0B2 Review Sessions
Quiz
•
Mathematics
•
University
•
Practice Problem
•
Hard
Nikesh Solanki
Used 26+ times
FREE Resource
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8 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following sums are possible?
A+C
A+B
C+A
B+A
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following scalar products are possible?
0C
5A
5B
5C
3.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Which of the following matrix products are possible?
AC
AB
BA
BC
None of these.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If we have two matrices A and B that can be added, is it necessarily true that A+B=B+A?
Yes
No
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If we have two matrices A and B that can be multiplied both AB and BA can be formed, is it necessarily true that AB=BA?
Yes
No
6.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
What is the (1,2)-th entry of the product AB.
0
4
1
-1
10
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
8.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
What is (2,1)-th entry of the inverse of the matrix in the picture?
-1/9
-3/5
-2/3
-1/10
0
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