Find the value of y in ( 3x + 4yi)(6 -7i) = 3 + 5i A. 1/20 c. 1/10 B. 3/20 d. -1/15 Q2: If X is a unit vector at 120 degrees angle, determine the vector sum 1 – X + X² in polar form. A. 2∟-300 c. 2∟-600 B. 3∟-300 d. 3∟-600

Find the value of y in ( 3x + 4yi)(6 -7i) = 3 + 5i A. 1/20 c. 1/10 B. 3/20 d. -1/15 Q2: If X is a unit vector at 120 degrees angle, determine the vector sum 1 – X + X² in polar form. A. 2∟-300 c. 2∟-600 B. 3∟-300 d. 3∟-600

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Vectors In Two And Three Dimensions

Section9.CR: Chapter Review

Problem 7CC

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Question

Q1: Find the value of y in ( 3x + 4yi)(6 -7i) = 3 + 5i

A. 1/20 c. 1/10

B. 3/20 d. -1/15

Q2: If X is a unit vector at 120 degrees angle, determine the vector sum 1 – X + X² in polar form.
A. 2∟-300 c. 2∟-600
B. 3∟-300 d. 3∟-600

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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