Skip to main content
Ch. 4 - Laws of Sines and Cosines; Vectors

Chapter 4, Problem 1

Use the following conditions to solve Exercises 1–4: 4 𝝅 sin α = ----- , ------- < α < 𝝅 5 2 5 𝝅 cos β = ------ , 0 < β < ------ 13 2 Find the exact value of each of the following. cos (α + β)

Verified Solution
Video duration:
7m
This video solution was recommended by our tutors as helpful for the problem above.
190
views
Was this helpful?