Precalculus: Sum and Difference Formulas for Trig Functions (Section 7.5) | Math with Professor V

Examples applying the angle addition and subtraction formulas to evaluate quantities, establish identities, and more complex applications.

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[georgesadler]

Professor V, this is another great video/lecture on Sum and Difference Formulas. These formulas can be used to breakdown angles that are not part of the unit circle. They are also used in Calculus II, III, Differential Equations and other Advanced Math/Science courses.

[SamanthaCote-fi]

thankyou!!!! I understand it a lot better now :)