3. Find 3a + 2b if a = [5,–4, 4] and b = [1,8, 11]

Calculus: Early Transcendentals
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ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Problem 3: Vector Operation**

Find \(3\mathbf{a} + 2\mathbf{b}\) if \(\mathbf{a} = [5, -4, 4]\) and \(\mathbf{b} = [1, 8, 11]\).

**Explanation:**
- The problem is asking you to calculate a linear combination of two vectors, \(\mathbf{a}\) and \(\mathbf{b}\).
- To solve, multiply each component of vector \(\mathbf{a}\) by 3 and each component of vector \(\mathbf{b}\) by 2, then add the corresponding components together.
Transcribed Image Text:**Problem 3: Vector Operation** Find \(3\mathbf{a} + 2\mathbf{b}\) if \(\mathbf{a} = [5, -4, 4]\) and \(\mathbf{b} = [1, 8, 11]\). **Explanation:** - The problem is asking you to calculate a linear combination of two vectors, \(\mathbf{a}\) and \(\mathbf{b}\). - To solve, multiply each component of vector \(\mathbf{a}\) by 3 and each component of vector \(\mathbf{b}\) by 2, then add the corresponding components together.
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  • αa +βb =αa1,a2,a3 +βb1,b2,b3 =αa1+βb1 ,αa2+βb2,αa3+βb3
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