Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 35E
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![Question 4
Let a and b be vectors in R³. Calculate ||a × b|| given that ||a|| = 7, ||b|| = 4 and a ⋅ b = −21.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3d49a1bf-def0-472f-94db-660c9693a140%2F0c76c917-f8ba-4d84-b979-6010c8ce419e%2Fowhi9ko_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 4
Let a and b be vectors in R³. Calculate ||a × b|| given that ||a|| = 7, ||b|| = 4 and a ⋅ b = −21.
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