Find a b if la| = 20, [b| = 1, and the angle between a and b is t/4. nswer:

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter7: Triangles
Section7.6: Vectors: The Dot Product
Problem 52PS
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Find a · b if Ja| = 20, b| = 1, and the angle between a and b is a/4.
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Transcribed Image Text:Find a · b if Ja| = 20, b| = 1, and the angle between a and b is a/4. Answer:
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