Sum-to-Product Formulas

There are also formulas that combine a sum or difference into a product. The sum-to-product formulas are also used to prove the Law of Tangents, though that itself is no longer used in solving triangle.

Learn more about sum-to-product formulas by reading the explanation below.

Sum – to – Product Formulas

Practice: Answer the following exercises about sum-to-product formulas.

Sum – to – Product Formulas 1

Sum – to – Product Formulas 2