Use exact values when evaluating sine and cosine. Can u explain in simple terms that way its easier for me to understand Part A: Find −7u ⋅ v. Show your work. Part B: Use the dot product to determine if u and w are parallel, orthogonal, or neither. Justify

Use exact values when evaluating sine and cosine. Can u explain in simple terms that way its easier for me to understand Part A: Find −7u ⋅ v. Show your work. Part B: Use the dot product to determine if u and w are parallel, orthogonal, or neither. Justify

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.3: The Addition And Subtraction Formulas

Problem 59E

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Question

Vectors u = −4(cos 60°i + sin60°j), v = 8(cos 135°i + sin135°j), and w = 12(cos 150°i + sin150°j) are given. Use exact values when evaluating sine and cosine.

Can u explain in simple terms that way its easier for me to understand
Part A: Find −7u ⋅ v. Show your work.
Part B: Use the dot product to determine if u and w are parallel, orthogonal, or neither. Justify your answer.

Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.

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