If ?̂ and ?̂ are unit vectors that make a 75° angle with each other, calculate |3?̂ + 5?̂|   Round your answer to the nearest tenth. (Include a sketch) a) |3?̂ + 5?̂| b) |4?̂ − 2?̂|

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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If ?̂ and ?̂ are unit vectors that make a 75° angle with each other, calculate |3?̂ + 5?̂| 
 Round your answer to the nearest tenth. (Include a sketch)
a) |3?̂ + 5?̂|

b) |4?̂ − 2?̂|

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