Consider three vectors A = 15.3i + 1.7j, B = 9.5i + 9.1j, and C = -2.7i - 11.4j. What is the result of 2A⋅(B - 3C)?  What is the result of A⋅A + B⋅B + C⋅C?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter6: Energy Of A System
Section: Chapter Questions
Problem 13P
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Consider three vectors A = 15.3i + 1.7jB = 9.5i + 9.1j, and C = -2.7i - 11.4j.

What is the result of 2A⋅(B - 3C)? 

What is the result of AA + BB + CC

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