1.) Use Cramer's rule to solve (if possible) 14x, - 21x, – 7x3 - 4x, + 2x2 – 2x3 = 56х = -21 , — 21х, +7xз — 7
1.) Use Cramer's rule to solve (if possible) 14x, - 21x, – 7x3 - 4x, + 2x2 – 2x3 = 56х = -21 , — 21х, +7xз — 7
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:1.) Use Cramer's rule to solve (if possible)
14х, — 21х, —- 7х, 3 —21
- 4x, + 2x, – 2x3 =
56х, — 21х, + 7xз %3D
2
7
-
2.) Determine if the following 4 points form a tetrahedron. If they do, then find its Volume.
(1,2, 3), (–1,2, –3), (4, 0,9), (–3, 1,7)
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