The value of A + B is
![\left[\begin{array}{ccc}10\\ 2\end{array}\right]](https://img.qammunity.org/2024/formulas/mathematics/high-school/4juebqp4l4b5t9dgi8qbs4el0yutrquhka.png)
Step 1: Identify the vector components.
From the image, we can identify the components of each vector:
Vector a: [[3], [4]]
Vector b: [[7], [-2]]
Step 2: Add corresponding components.
To find the sum of the vectors, we add the corresponding components of a and b:
a + b = [[3] + [7], [4] + [-2]]
a + b = [[10], [2]]
Step 3: Interpret the result.
Therefore, the column vector [[10], [2]] represents the sum of the vectors a and b, which is written as a + b.