Scalar Multiplication of Matrices

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•
Mathematics
•
11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is scalar multiplication of a matrix?
Back
Scalar multiplication of a matrix involves multiplying each element of the matrix by a scalar (a constant number).
2.
FLASHCARD QUESTION
Front
If A is a matrix and k is a scalar, what is the result of kA?
Back
The result of kA is a new matrix where each element of matrix A is multiplied by the scalar k.
3.
FLASHCARD QUESTION
Front
How does scalar multiplication affect the size of a matrix?
Back
Scalar multiplication does not change the size (dimensions) of the matrix; it only changes the values of its elements.
4.
FLASHCARD QUESTION
Front
What is the effect of multiplying a matrix by zero?
Back
Multiplying any matrix by zero results in a zero matrix of the same dimensions.
5.
FLASHCARD QUESTION
Front
If A = [[1, 2], [3, 4]] and k = 3, what is kA?
Back
kA = [[3*1, 3*2], [3*3, 3*4]] = [[3, 6], [9, 12]].
6.
FLASHCARD QUESTION
Front
What happens when a matrix is multiplied by -1?
Back
Multiplying a matrix by -1 changes the sign of each element in the matrix.
7.
FLASHCARD QUESTION
Front
Can scalar multiplication be applied to non-square matrices?
Back
Yes, scalar multiplication can be applied to any matrix, regardless of whether it is square or non-square.
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