   Chapter 12.3, Problem 3E

Chapter
Section
Textbook Problem

# Find a · b.3. a = ⟨1.5, 0.4⟩, b = ⟨−4, 6⟩

To determine

To find: A dot product between a and b .

Explanation

Given:

a=1.5,0.4 and b=4,6 .

A minimum of two vectors are required to perform a dot product. The resultant dot product of two vectors is scalar. So, the dot product is also known as a scalar product.

Consider a general expression to find the dot product between two two-dimensional vectors.

ab=a1,a2b1,b2=a1b1+a2b2

Substitute 1

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