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GCSE formulas
25/10/2023
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Formul Comuca sheet gisk • Area of a Trapezirem = 1½/2 (a+b)h • volume section x of a prisim = area of cross tengon 20x15=300 volume= 300cm³ 15cm 20 cm² R = radices D= diameter. Area of a cricle - Ter ² quadratic. The solutren. where a #0 I Sone rile:- Cosx = adjacent пуроченная ax² + bx +C=0 Sin A @ pythings was thnewsem In any night-angled triangle where a+b +c are the tenfor of the sides and is me hypotenuse. trigonometry. Sinx = oppoute hypotenual Diameter x = -b± √√√b²-4ac 2a Land = opposite adjacent = b Sin B Crcumference of a cvicle = 2 πr = nd •C= πd C= 2ter Compound interest P = principle amount r- interest rate over time period n = No times that interest is comperunded Total accrued = p T P[1 + 100 7² radius Sinc formula a a²+b²=C² a C hypotenuse хорромте в Yadjacent Area ممل المهمة Cosine rule" a² = b ² + C² - 2bc Cos A of a krangle ½ab sin PROBABILITY P(A or B) = P(A) + P(B)- P(A and B) P(A and B = PA given B) P(B) 3) P(B) Opposite side (0) Hypotenuse (H) Adjacent (A) XX Trigonometry formulae CAH TOA AAA SH CH TA COS(INE) SOH Only label the 2 sides involved in the question SIN(E) X is the angle in the (right-angled) triangle hypotenuse= opposite side sin X 0 SXH TAN(GENT) sin.X= opposite side= sinx x hypotenuse opposite side hypotenuse
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