In Exercises 17 and 18, for the triangle with the given vertices A, B , C, find the lengths of its sides, and deter- mine which of its angles are acute, obtuse, or right angles. 17/ A=(2,-3,6),B=(I,3,-2),C=(1,7,1)
In Exercises 17 and 18, for the triangle with the given vertices A, B , C, find the lengths of its sides, and deter- mine which of its angles are acute, obtuse, or right angles. 17/ A=(2,-3,6),B=(I,3,-2),C=(1,7,1)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.2: Length And Angle: The Dot Product
Problem 35EQ
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In Exercises 17 and 18, for the triangle with the given vertices A, B , C, find the lengths of its sides, and deter- mine which of its angles are acute, obtuse, or right angles.
17/ A=(2,-3,6),B=(I,3,-2),C=(1,7,1)
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