Griffiths (3rd Edition), Chapter 01, Problem 1.3 Solution

Griffiths, Introduction to Electrodynamics, 3rd Edition

Chapter 01. Vector Analysis

1.1 Vector Algebra

1.1.2 Vector Algebra: Component Form

Problem 1.3 Property of the dot product

The problem asks you to
find the angle between the body diagonals of a cube.
You should know about
the dot product of vectors and its property.

\vec{A} \cdot \vec{B} = AB \cos \theta



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