In Exercises 6374, use the product-to-sum formulas to write the product as a sum or
Chapter 5, Problem 63(choose chapter or problem)
In Exercises 6374, use the product-to-sum formulas to write the product as a sum or difference.
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