Don't lose your points!
Sign up and save them.
5.4: Sum and Difference Formulas

5.4: Sum and Difference Formulas

Author: Chris Melograna
See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

28 Sophia partners guarantee credit transfer.

263 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 25 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Notesheet for 5.4

Full Screen

Sum and difference formulas for Sine and Cosine

Sum and difference formula for Tangent

Sum and difference when in radians

Using sum/difference formulas to verify identities

Using sum/difference formulas with right triangles

Working backwards with sum and difference formulas