A- If lv| = 3, |w| = 2 and the angle of v and w is , find lv – 2w|B- A magnetic field is given by B = 3(x + y)i + 2xyj. Find the |V. B| of this field atpoint (2, 2).

As two questions are given , I will solve only one : we are given : v=3 , w=2 Let θ be the angle…

Answered: If |v| = 3, w| = 2 and the angle of v…

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If |v| = 3, w| = 2 and the angle of v and w is (), find lv - 2w| %3D

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter8: Applications Of Trigonometry

Section8.4: The Dot Product

Problem 31E

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Question

A- If lv| = 3, |w| = 2 and the angle of v and w is , find lv – 2w|
B- A magnetic field is given by B = 3(x + y)i + 2xyj. Find the |V. B| of this field at
point (2, 2).

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