Classical Dynamics Of Particles And Systems
Classical Dynamics Of Particles And Systems
5th Edition
ISBN: 9788131518472
Author: Stephen T. Thornton, Jerry B. Marion
Publisher: Cengage Learning India
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Chapter 1, Problem 1.19P

(a)

To determine

Prove that cos(αβ)=cosαcosβ+sinαsinβ.

(b)

To determine

Prove that cos(αβ)=sinαcosβcosαsinβ.

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In general it is best to conceptualize vectors as arrows in space, and then to make calculations with them using their components. (You must first specify a coordinate system in order to find the components of each arrow.) This problem gives you some practice with the components. Let vectors A = (1,0, -3), B = (-2, 5, 1), and C = (3,1,1). Calculate the following, and express your answers as ordered triplets of values separated by commas.
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Classical Dynamics Of Particles And Systems

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