Question: Find the value of $x$ such that the vectors $\begin{pmatrix} 2 \\ x \\ -3 \end{pmatrix}$ and $\begin{pmatrix} 4 \\ -1 \\ 1 \end{pmatrix}$ are orthogonal.

Question: Find the value of $x$ such that the vectors $\begin{pmatrix} 2 \\ x \\ -3 \end{pmatrix}$ and $\begin{pmatrix} 4 \\ -1 \\ 1 \end{pmatrix}$ are orthogonal.

["Title: How to Find $x$ So That Two Vectors Are Orthogonal – A Step-by-Step Guide", "When working with vectors in mathematics and physics, understanding orthogonality is essential. Two vectors are orthogonal if their dot product equals zero. In real-world applications, this condition helps determine perpendicularity in geometry, optimize designs in engineering, and even improve performance in machine learning.", "In this article, we solve a common problem: find the value of $x$ such that the vectors\n$$\n\mathbf{v} = \begin{pmatrix} 2 \ x \ -3 \end{pmatrix} \quad \ ext{and} \quad \mathbf{w} = \begin{pmatrix} 4 \ -1 \ 1 \end{pmatrix}\n$$\nare orthogonal.", "---", "### What Does It Mean for Vectors to Be Orthogonal?", "Two vectors are orthogonal (perpendicular) if their dot product is zero. The dot product of $\mathbf{v}$ and $\mathbf{w}$ is calculated as:", "$$\n\mathbf{v} \cdot \mathbf{w} = (2)(4) + (x)(-1) + (-3)(1)\n$$", "---", "### Step-by-step Calculation", "Compute each component of the dot product:", "- First components: $2 \ imes 4 = 8$\n- Second components: $x \ imes (-1) = -x$\n- Third components: $-3 \ imes 1 = -3$", "Add them together:", "$$\n\mathbf{v} \cdot \mathbf{w} = 8 - x - 3 = 5 - x\n$$", "Set the dot product equal to zero for orthogonality:", "$$\n5 - x = 0\n$$", "---", "### Solve for $x$", "$$\nx = 5\n$$", "---", "### Final Answer", "The value of $x$ that makes the vectors\n$$\n\begin{pmatrix} 2 \ 5 \ -3 \end{pmatrix} \quad \ ext{and} \quad \begin{pmatrix} 4 \ -1 \ 1 \end{pmatrix}\n$$\northogonal is $\boxed{5}$.", "---", "### Why This Matters", "Orthogonal vectors form the foundation for many mathematical and engineering techniques, including:", "- Designing efficient systems in civil engineering\n- Reducing dimensionality in data science (e.g., PCA)\n- Analyzing forces in physics that do not interact\n- Optimizing performance in machine learning algorithms", "Knowing how to determine orthogonality ensures stronger, more accurate mathematical reasoning and problem-solving.", "---", "Keywords: orthogonal vectors, dot product, find x, vector dot product, perpendicular vectors, math tutorial, linear algebra, vector math, perpendicularity condition, dimensional analysis, vector applications."]

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