What is the product?
[4 3 -1 -1] x [-3 1 -2 -2]
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Answer:
Option A
|-6 -2|
|1 1|
Step-by-step explanation:
This is a product of a matrix.
So for the first number on the first row, we have;
(4 × -3) - (3 × -2) = -12 + 6 = -6
For the second number on the first row, we have;
(4 × 1) - (3 × 2) = 4 - 6 = -2
For the first number on the second row, we have;
(-1 × -3) - (-1 ×-2) = 3 - 2 = 1
For the second number on the second row, we have;
(-1 × 1) - (-1 × 2) = -1 + 2 = 1
Thus, we now have;
|-6 -2|
|1 1|
Answer: It's B, as in [ -18 10 5 -3]
Step-by-step explanation: I don't exactly wanna explain the entire process of multiplying matrices, but I ran it through multiple matrix calculators so I know it's right