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Unformatted text preview: (2,6). Computation. You need to ﬁnd two vectors that form sides of the triangle. So subtract the ﬁrst vector from the last two. That gives you ⃗v 1 = [ 11 ] and ⃗v 2 = [ 1 2 ] . The absolute value of the determinant of the matrix with columns ⃗v 1 and ⃗v 2 is 3 and that’s the area of the parallelogram deﬁned by ⃗v 1 and ⃗v 2 . So the area of the triangle is 3/2....
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This note was uploaded on 02/06/2011 for the course MATH 33a taught by Professor Lee during the Fall '08 term at UCLA.
 Fall '08
 lee
 Determinant

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