Precalculus - College Algebra/Trigonometry - Introduction to Sum and Difference Formulas in Trigonometry (Precalculus - Trigonometry 25)
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What you'll learn
This course includes
75 hours of video
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Summary
Full Transcript
What the Sum and Difference formulas are for the three basic trig functions, where they come from, and how to use them to find exact solutions to angles that are not on the Unit Circle.
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