6. Trigonometric Identities and More Equations
Sum and Difference Identities
Problem 5.71
Textbook Question
Textbook QuestionVerify that each equation is an identity (Hint: cos 2x = cos(x + x).)
cos 2x = 1 - 2 sin² x
Verified Solution
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
0m:0sPlay a video:
104
views
Was this helpful?
Related Videos
Related Practice
Showing 1 of 24 videos