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

Chapter 4, Problem 1

Use the formula for the cosine of the difference of two angles to solve Exercises 1–12. In Exercises 1–4, find the exact value of each expression. cos(45° - 30°)

Verified Solution
Video duration:
4m
This video solution was recommended by our tutors as helpful for the problem above.
246
views
Was this helpful?