1. Find the sum of the vectors (3,-1) and (-1,5) and illustrate geometrically.

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### Vector Addition and Geometric Interpretation

**Problem Statement:**
1. Find the sum of the vectors \(\langle3, -1\rangle\) and \(\langle-1, 5\rangle\) and illustrate geometrically.

**Solution:**
To find the sum of the vectors, we add the corresponding components of the given vectors:

Let \(\mathbf{v_1} = \langle 3, -1 \rangle\) and \(\mathbf{v_2} = \langle -1, 5 \rangle\).

The sum \(\mathbf{v_1} + \mathbf{v_2}\) is:
\[
\mathbf{v_1} + \mathbf{v_2} = \langle 3, -1 \rangle + \langle -1, 5 \rangle 
= \langle 3 + (-1), -1 + 5 \rangle 
= \langle 2, 4 \rangle
\]

**Geometric Illustration:**
To illustrate the sum of these vectors geometrically:

1. Plot the initial point (usually the origin) and the terminal points of the vectors \(\mathbf{v_1}\) and \(\mathbf{v_2}\).
2. Since vectors have direction and magnitude but not a fixed position, place the beginning (tail) of \(\mathbf{v_2}\) at the end (head) of \(\mathbf{v_1}\).
3. The resulting vector \(\mathbf{v_1} + \mathbf{v_2}\) starts at the initial point (origin) and ends at the terminal point after both vectors are added head-to-tail.

On a Cartesian plane:
- Draw the vector \(\mathbf{v_1} = \langle3, -1\rangle\), starting from the origin (0,0) to the point (3,-1).
- From the point (3, -1), draw \(\mathbf{v_2} = \langle-1, 5\rangle\), ending at (3 + -1, -1 + 5) = (2, 4).
- The vector \(\mathbf{v_1} + \mathbf{v_2}\) is a straight line from the origin (0,0) to (2,4).

This graphical
Transcribed Image Text:### Vector Addition and Geometric Interpretation **Problem Statement:** 1. Find the sum of the vectors \(\langle3, -1\rangle\) and \(\langle-1, 5\rangle\) and illustrate geometrically. **Solution:** To find the sum of the vectors, we add the corresponding components of the given vectors: Let \(\mathbf{v_1} = \langle 3, -1 \rangle\) and \(\mathbf{v_2} = \langle -1, 5 \rangle\). The sum \(\mathbf{v_1} + \mathbf{v_2}\) is: \[ \mathbf{v_1} + \mathbf{v_2} = \langle 3, -1 \rangle + \langle -1, 5 \rangle = \langle 3 + (-1), -1 + 5 \rangle = \langle 2, 4 \rangle \] **Geometric Illustration:** To illustrate the sum of these vectors geometrically: 1. Plot the initial point (usually the origin) and the terminal points of the vectors \(\mathbf{v_1}\) and \(\mathbf{v_2}\). 2. Since vectors have direction and magnitude but not a fixed position, place the beginning (tail) of \(\mathbf{v_2}\) at the end (head) of \(\mathbf{v_1}\). 3. The resulting vector \(\mathbf{v_1} + \mathbf{v_2}\) starts at the initial point (origin) and ends at the terminal point after both vectors are added head-to-tail. On a Cartesian plane: - Draw the vector \(\mathbf{v_1} = \langle3, -1\rangle\), starting from the origin (0,0) to the point (3,-1). - From the point (3, -1), draw \(\mathbf{v_2} = \langle-1, 5\rangle\), ending at (3 + -1, -1 + 5) = (2, 4). - The vector \(\mathbf{v_1} + \mathbf{v_2}\) is a straight line from the origin (0,0) to (2,4). This graphical
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