AMAI Quiz (24-25)
Authored by J annemary
Mathematics
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If two vectors are orthogonal, their dot product is:
a) 1
b) -1
c) 0
d) Infinity
a
b
c
d
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A unit vector has a magnitude of:
a) 0
b) 1
c) Infinity
d) Any value
a
b
c
d
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The transpose of a matrix is obtained by:
a) Swapping rows and columns
b) Multiplying by -1
c) Rotating by 360 degrees
d) Taking the inverse
a
b
c
d
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The trace of a square matrix is the sum of its:
a) First column elements
b) Diagonal elements
c) All elements
d) First row elements
a
b
c
d
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A matrix is orthogonal if:
a) Aᵀ = A⁻¹
b) Aᵀ = A
c) A = -Aᵀ
d) A = 0
a
b
c
d
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An eigenvector of a matrix A satisfies the equation:
a) Ax = λx
b) Ax = x/λ
c) Ax = 0
d) Ax = -λx
a
b
c
d
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Eigenvalues can be:
a) Real
b) Complex
c) Both real and complex
d) Only integers
a
b
c
d
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