Simplify an expression using the sum and difference formulas

👉 Learn how to write a given sum or difference of two angles formula expression as a single sum/difference of angles trigonometric function. To do this, we first identify the trigonometric function for which its sum/difference formula is given and identify the individual angles. Then we can plug in the angles appropriately into the single sum/difference trigonometric function.

Organized Videos:
✅ Sum and Difference Formulas
✅ Evaluate Sum and Difference Formulas from a Triangle
✅ Simplify an Expression using Sum and Difference Formulas
✅ Write the Expression as a single function | Sum and Difference Formulas
✅ Verify Identities using Sum and Difference Identities
✅ Evaluate Tangent using Sum and Difference Formulas
✅ Evaluate Cosine using Sum and Difference Formulas
✅ Evaluate Sine using Sum and Difference of Two Angles
✅ Solve Equations using Sum and Difference Formulas

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