Math Problem Statement

Given the matrices AA and BB shown below, find A, plus, B, .A+B.

A, equals, open square bracket,

begin matrix

row 1, column 1, minus, 1

row 1, column 2, 5

end matrix

, close square bracket, B, equals, open square bracket,

begin matrix

row 1, column 1, 2

row 1, column 2, minus, 2

end matrix

, close square bracket

A=[−1​5​]B=[2​−2​]

Solution

We are given two matrices:

A=[15],B=[22]A = \begin{bmatrix} -1 & 5 \end{bmatrix}, \quad B = \begin{bmatrix} 2 & -2 \end{bmatrix}

We are tasked with finding A+BA + B.

To add matrices, we add their corresponding elements. So, we will perform:

A+B=[15]+[22]A + B = \begin{bmatrix} -1 & 5 \end{bmatrix} + \begin{bmatrix} 2 & -2 \end{bmatrix}

Step by step, element-wise addition gives:

A+B=[1+25+(2)]=[13]A + B = \begin{bmatrix} -1 + 2 & 5 + (-2) \end{bmatrix} = \begin{bmatrix} 1 & 3 \end{bmatrix}

Thus, the result is:

A+B=[13]A + B = \begin{bmatrix} 1 & 3 \end{bmatrix}

Let me know if you'd like further clarification or details!

Here are 5 related questions:

  1. How do you subtract two matrices?
  2. What happens if you try to add matrices of different sizes?
  3. Can you explain matrix multiplication and how it differs from matrix addition?
  4. How do you compute the transpose of a matrix?
  5. What are the conditions for two matrices to be conformable for multiplication?

Tip: Always make sure matrices are of the same dimensions before adding or subtracting them!

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Math Problem Analysis

Mathematical Concepts

Matrix Addition
Linear Algebra

Formulas

A + B = [a_ij + b_ij]

Theorems

Matrix Addition Theorem

Suitable Grade Level

Grades 9-12