Vault Of Euclid

Volume of a Parallelepiped Using Determinants

Determinants warmup

Find the volume \( V(S) \) of the parallelepiped \( S \) in \( \mathbf{R}^3 \) determined by the vectors: (a) \( u_1 = (1,1,1) \), \( u_2 = (1, 3, -4) \), \( u_3 = (1, 2, -5) \). (b) \( u_1 = (1,2,4) \), \( u_2 = (2, 1, -3) \), \( u_3 = (5,7,9) \).
linear-algebradeterminantsvolumeparallelepipedscalar-triple-productlinear-dependencecoplanar-vectorssarrus-rulematrix-determinant3x3-matrixabsolute-valuegeometric-interpretation

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What you need first

What this problem tests

Tests the ability to compute a 3x3 determinant and interpret its value geometrically.

This is a standard application of determinants in introductory linear algebra and multivariable calculus courses.

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