Using and Proving Trigonometric Identities
More Lessons for Algebra II Math
Math Worksheets
Videos, solutions, worksheets, games and activities to help Algebra 2 students learn how to use and prove trigonometric identities.
Proof of the trig identity sin(a+b) = (cos a)(sin b) + (sin a)(cos b)
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
