Maths Formulas 0.0 / 5 ? MathematicsGeneral formulasGCSEEdexcel Created by: King PutinCreated on: 08-11-16 12:12 What is the quadratic formula? x = -b + or - √b²-4ac ÷ 2a 1 of 9 What is Pythagoras theorem? x²+y² = z² 2 of 9 What does SOH stand for? sinθ = opposite ÷ hypotenuse 3 of 9 What does CAH stand for? cosθ = adjacent ÷ hypotenuse 4 of 9 What does TOA stand for? tanθ = opposite ÷ adjacent 5 of 9 What is the sine rule for sides? a ÷ sinA = b ÷ sinB = c ÷ sinC 6 of 9 What is the sine rule for angles? sinA ÷ a = sinB ÷ b = sinC ÷ c 7 of 9 What is the cosine rule for sides? a² = b² + c² - 2bc cosA 8 of 9 What si the cosine rule for angles? cosA = b² + c² - a² ÷ 2bc 9 of 9
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