What is a square matrix?
Types of Matrices and Matrix Addition

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Mathematics
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11th Grade - University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A matrix with all zero entries
A matrix with equal number of rows and columns
A matrix with only one column
A matrix with only one row
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of matrix has all entries below the main diagonal as zero?
Upper triangular matrix
Lower triangular matrix
Diagonal matrix
Identity matrix
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a vector in the context of matrices?
A matrix with a single row
A matrix with a single column
A matrix with all diagonal entries as zero
A matrix with equal rows and columns
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you perform scalar multiplication on a matrix?
Subtract the scalar from each entry of the matrix
Divide each entry of the matrix by the scalar
Multiply each entry of the matrix by the scalar
Add the scalar to each entry of the matrix
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is required for two matrices to be added together?
They must have the same number of rows
They must have the same number of columns
They must be square matrices
They must have identical dimensions
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which property does matrix addition have?
Associative
Distributive
Commutative
Transitive
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is matrix subtraction not commutative?
Because matrices must be square for subtraction
Because subtraction requires identical dimensions
Because the order of subtraction affects the result
Because subtraction is not defined for matrices
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