Let a = and b = -2 be two vectors. What is Ja2|b|2 - Ja b2 ?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 14E
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Let a =
1
and b =
-2be two vectors.
-
What is Ja|2|b|? - |a · bl? ?
[Please enter your answer numerically. You will be marked correct as long as what you enter is within 0.5 of the correct answer.]
Answer:
Transcribed Image Text:0. Let a = 1 and b = -2be two vectors. - What is Ja|2|b|? - |a · bl? ? [Please enter your answer numerically. You will be marked correct as long as what you enter is within 0.5 of the correct answer.] Answer:
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