In Exercises 1151, prove the identity.1 + cos x 1 - cos x
Chapter 5, Problem 5.1.1.154(choose chapter or problem)
In Exercises 11–51, prove the identity.
\(\frac{1+\cos x}{1-\cos x}=\frac{\sec x+1}{\sec x-1}\)
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer