Sum And Difference Trigonometric Identities

Tutoring on Sum And Difference Trigonometric Identities

Learning Objectives:

Understand an Apply Sum and Difference of Trigonometric Identities

Math Tutoring on Sum and Difference Trigonometric Identities

Sum and Difference Identities for Cosine:

Sum and Difference Identities for Sine:

Sum and Difference Identities for Tangent:

 

 

 

 

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Hook Questions:

1.   Prove that cos(A+B) = cosAcosB – sinAsinB.

2.   Deduce tan(A+B) with the help of Sum Identities of Sine & Cosine.

 

 

 

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