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Suppose uu=8₁ u • v = 7, and v•v=6. Evaluate the number (3u-v) • (a +3v).

Suppose uu=8₁ u • v = 7, and v•v=6. Evaluate the number (3u-v) • (a +3v).

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Suppose \( u \cdot u = 8 \), \( u \cdot v = 7 \), and \( v \cdot v = 6 \). Evaluate the number \((3u - v) \cdot (u + 3v)\).
Transcribed Image Text:Suppose \( u \cdot u = 8 \), \( u \cdot v = 7 \), and \( v \cdot v = 6 \). Evaluate the number \((3u - v) \cdot (u + 3v)\).
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Step 1: Introduction of the given problem

u times u equals 8 u times v equals 7 v times v equals 6

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