TRIG INDENITIES Flashcards by Emily Choate | Brainscape

Q

sin(A+B}

A

sinAcosB+cosAsinB

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Q

sin(A-B}

A

sinAcosB-cosAsinB

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Q

cos{A+B}

A

cosAcosB-singAsinB

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Q

cos{A-B}

A

cosAcosB+sinAsinB

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Q

sin{2A}

A

2sinAcosA

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Q

cos{2A}

A

cos^2A-sin^2A

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Q

sin{A/2}

A

+- sqrt{1-cosA/2}

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Q

cos{A/2}

A

+- sqrt{1+cosA/2}

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