Lecture 4/5 ñ Summary Compound Angle Formulae

• sin (A + B) = sinA.cosB + cosA.sinB

• sin (A ñ B) = sinA.cosB ñ cosA.sinB

• cos (A + B) = cosA.cosB ñ sinA.sinB

• cos (A ñ B) = cosA.cosB + sinA.sinB

• tan (A + B) = (tanA + tanB)

1 ñ tanA.tanB

• tan (A ñ B) = (tanA ñ tanB)

1 + tanA.tanB

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