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2 cards from this section. Quick, good the night before a test.
What is the result of multiplying the matrix [[2, 3], [4, 5]] by the scalar 4?
Multiply each element by 4.
If A = [[1, 1], [1, 1]] and we multiply by 5, what is the resulting matrix?
Multiply each element by 5.
What happens to each element of a matrix during scalar multiplication?
Recall how we did operations with scalars.
True or False: Scalar multiplication can change the size of a matrix.
Think about what happens when you multiply numbers.
You have a matrix G = [[3, 4], [5, 6]] and a scalar of -1. What is the resulting matrix after scalar multiplication?
Don't forget about the negative sign!
Consider matrix H = [[0, 1], [2, 3]] and scalar 10. Calculate 10H.
You’re just stretching the matrix away.
5 more questions in this section. Enroll free to practise them all.
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