Use cross products to find the area of the triangle in the xy-plane defined by (1,2), (3,4), and (–10, 10).

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter7: Matrices And Determinants
Section7.5: Applications Of Matrices And Determinants
Problem 3ECP
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Use cross products to find the area of the triangle in the xy-plane defined by (1,2), (3, 4), and (-10, 10).
(Use symbolic notation and fractions where needed.)
A =
Transcribed Image Text:Use cross products to find the area of the triangle in the xy-plane defined by (1,2), (3, 4), and (-10, 10). (Use symbolic notation and fractions where needed.) A =
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