(a) A machine generates a force F= 4î + 7j – 5k causing an object to move from the point with coordinates (1, 2, 8) to the point (6, 3, 9), find the displacement vector i and the work done of the force by the machine. (b) Show that the following system of equations has non-trivial solution. x + 2y + 3z = 0 9x + 8y + 7z = 0 (4x + 5y + 6z = 0

(a) A machine generates a force F= 4î + 7j – 5k causing an object to move from the point with coordinates (1, 2, 8) to the point (6, 3, 9), find the displacement vector i and the work done of the force by the machine. (b) Show that the following system of equations has non-trivial solution. x + 2y + 3z = 0 9x + 8y + 7z = 0 (4x + 5y + 6z = 0

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter8: Applications Of Trigonometry

Section8.4: The Dot Product

Problem 32E

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