(Text'.| Find a ⋅ b if |a| = 5, |b| = 4, and the angle between a and b isradians.8•a b =

The formula for the dot product is : a⋅b = ∣a∣ ∣b∣ cos(θ)a⋅b = 5* 4 *cos(π/8)a⋅b = 18.4776…

Answered: (Text' . | Find a ⋅ b if |a| = 5, |b| =…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.1: Rectangular Coordinate Systems

Problem 22E

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(Text' . | Find a ⋅ b if |a| = 5, |b| = 4, and the angle between a and b is radians. 8 • a b =