For three points on the plane (x1, y1), (x2, y2) and (x3, y3) show that the determinant of | x1 y1 1 | | x2 y2 1 | | x3 y3 1 | is proportional to the area of the triangle whose corners are the thre
For three points on the plane (x1, y1), (x2, y2) and (x3, y3) show that the determinant of | x1 y1 1 | | x2 y2 1 | | x3 y3 1 | is proportional to the area of the triangle whose corners are the thre
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.2: Determinants
Problem 7AEXP
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For three points on the plane (x1, y1), (x2, y2) and (x3, y3) show that the
determinant of
| x1 y1 1 |
| x2 y2 1 |
| x3 y3 1 |
is proportional to the area of the
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