The value of (4a - 3b) in the given question using scaler multiplication of vector is (-2, 11).
A vector is a mathematical identity that has both magnitude and direction. With the help of a vector, we can represent a physical quantity.
The scaler multiplication of vector is multiplying a vector quantity by a scaler quantity. Obviously, the result will be a vector.
Given, two vectors a = (1, 2) and b = (2, -1).
Therefore, to find 4a - 3b, we need to perform the scaler multiplication of vector.
Therefore, 4a = 4 (1, 2) = (4, 8).
3b = 3 (2, -1) = (6, -3).
Now, (4a - 3b) = [(4 - 6), (8 + 3)] = (-2, 11).
Hence, (4a - 3b) = (-2, 11).
Learn more about the scaler multiplication of vector here: https://brainly.com/question/25942218
#SPJ2
