Ch9+10 Trigonometry Flashcards by Lyra Elliott-Jones | Brainscape

Q

Cosine rule

A

a^2 = b^2 + c^2 -2bcCosA

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Q

Area

A

1/2absinC

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Q

Sine rule

A

a/sinA = b/sinB = c/sinC

sinA/a = sinB/b = sinC/c

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Q

1 trig identity

A

sin^2 + cos^2 = 1

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Q

tan trig identity

A

sin/cos = tan

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