   Chapter 11.3, Problem 17E

Chapter
Section
Textbook Problem

# Alternative Form of Dot Product In Exercises 19 and 20, use the alternative form of the dot product to find u   ·   v . ‖ u ‖ = 8 ,     ‖ v ‖ = 5 , and the angle between u and v is /3.

To determine

To calculate: The dot product uv where, u=8,v=5 with the use alternate form of dot product. Also, given that the angle between u and v is π3.

Explanation

Given:

The values, u=8,v=5

And, the angle between u and v is π3.

Formula used:

The alternate form of dot product;

u.v=uvcosθ

Calculation:

Since, the alternate form of dot product is;

u

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