basic GCSE equations Flashcards by Lola Swinney

Q

quadratic equation

A

x = (-b ± √(b² - 4ac)) / (2a)

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Q

cosine rule

A

c² = a² + b² - 2ab * cos(C)

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Q

sine rule

A

a/sin(A) = b/sin(B) = c/sin(C)

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Q

area of a triangle

A

1/2 ab sinC

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