Quiz
VGLA term 1
Questions in this quiz (25)
1A system when b1 = b2 = ··· = bm = 0 is called
- AHomogeneous
- BNon-homogeneous
2A system is said to be homogeneous when b1 = b2 = ·· ·= bm = 0
- ATrue
- BFalse
3Homogeneous systems always have at least one solution called “the trivial solution”
- ATrue
- BFalse
4Homogeneous systems don't have solutions
- ATrue
- BFalse
5Number of rows
- Am
- Bn
6Number of columns
- Am
- Bn
7( 5 6 7 8 ) is a 1 x 4 matrix
- ATrue
- BFalse
8( 5 6 7 8 ) is a 4 x 1 matrix
- ATrue
- BFalse
9( 5 6 7 8 9 ) is a 5 x 1 matrix
- ATrue
- BFalse
10( 5 6 7 8 9 ) is a 1 x 5 matrix
- ATrue
- BFalse
11The matrix 1
2
3
4
Is a 1 x 4 matrix- ATrue
- BFalse
12The matrix 1
2
3
4
Is a 4 x 1 matrix- ATrue
- BFalse
13What is the order of The matrix 1
2
3
4- A1 x 4
- B4 x 1
- C4
- D1
14Two matrices A and B are equal if and only if:
- ABoth have the same dimension say m x n
aij = bij for all i,j. - BBoth have the same dimension say m x n
a = bij for all i,j. - CBoth have the same dimension say m x n
aij = bij for some i,j. - DBoth have the same dimension say m x n
aij = b for all i,j.
- ABoth have the same dimension say m x n
15A + (-A) =
- A0mxn
- B0
- CA
- DA-A
16Matrix Multiplication Is Not Commutative
- ATrue
- BFalse
17Matrix Multiplication Is Commutative
- ATrue
- BFalse
18Matrix Multiplication Is Not Associative
- ATrue
- BFalse
19Matrix Multiplication Is Associative
- ATrue
- BFalse
20What does it mean for matrix multiplication to be associative ?
- AABC = A(BC) = (AB)C
- BABC = A(BC) = ABC
- CABC = CBA
- DABC = CBA = CAB = BCA
21An n × n matrix is diagonal when: aij =0 for i /= j
- ATrue
- BFalse
22An n × n matrix is diagonal when: aij =0 for i = j
- ATrue
- BFalse
23An upper triangular matrix is any n × n matrix where
- Aaij =0 where i /= j
- Baij =0 wherei > j
- Caij =0 where i > i
24lower triangular matrix has:
- Aaij =0 where j > i
- Baij =0 where j \> i
- Caij =0 where j = i
25If the n x n matrix A is invertible then
- AAB = In = BA
- BAB = In = BA-1
- CAB = BA
- DAB = In = B-1A-1
Information
- Description
- Bachelors Degree Mathematics Quiz on VGLA term 1, created by Will Rickard on 29/10/2015.
- Author
- Will Rickard
- Language
- English
- Views
- 111
- History
- Created on 29 Oct 2015 · updated on 15 Aug 2017
- Tags
- Rating
- 5.0 out of 5 · 1 rating Rate this quiz