Cosine rule Study guides, Revision notes & Summaries

Constant Rule - ANSWER-d/dx [c] = 0 Constant Multiple Rule - ANSWER-d/dx [cf(x)]=cf'(x) Sum Rule - ANSWER-d/dx [f(x)+g(x)] = f'(x)+g'(x) Difference Rule - ANSWER-d/dx [f(x)-g(x)] = f'(x)-g'(x) Product Rule - ANSWER-d/dx [f(x)*g(x)] = f(x)g'(x) + f'(x)g(x) Quotient Rule - ANSWER-d/dx [f(x)/g(x)] = [g(x)f'(x) - g'(x)f(x)]/[g(x)²] Chain Rule - ANSWER-d/dx [f(g(x)] = f'(g(x))*g'(x) Power Rule - ANSWER-d/dx[xⁿ]=nxⁿ⁻¹ Definition of the number e - ANSWER-d/dx[...

Quadratic Formula - ANS-x = -b ± √(b² - 4ac)/2a Pythagorean Theorem - ANS-a²+b²=c² (a^x)(a^y) - ANS-a^(x + y) a^x / a^y - ANS-a^(x - y) (a^x)^y - ANS-a^xy x = a^n - ANS-n = logA(x) logAx + logAy - ANS-logA(xy) kloga(x) - ANS-loga(x^k) straight line formula - ANS-(y - y1) = m(x-x1) perpendicular gradients are... - ANS-negative reciprocals General term of AP - ANS-Un = a + (n-1)d General term of GP - ANS-Un = ar^n-1 Sine rule - ANS-a/sinA = b/sinB = c/sinC Cosine rule - ANS-a²...

Edexcel A Level Maths - Pure QUESTIONS AND ANSWERS 100% VERIFIED A+ GUARANTEED Cosine Rule - Know 2 sides, and the angle in between. You want the missing side. Cosine Rule - Know 3 sides. You want an angle. Sine Rule - Know 2 angles and a side. You want the missing side. Sine Rule - Know 2 sides and an angle. You want a missing angle. Midpoint of a line segment on a circle. Equation of a circle with centre (0,0) Equation of a circle with centre (a,b) Arithmetic nth Term Arithmetic Serie...

Edexcel A Level Maths (A+ Graded 100% Verified) Cosine Rule - Know 2 sides, and the angle in between. You want the missing side. ANS: a² = b² + c² - 2bcCosA Cosine Rule - Know 3 sides. You want an angle. ANS: Cos A = (b² + c² - a²) ÷ 2bc Sine Rule - Know 2 angles and a side. You want the missing side. ANS: (a ÷ SinA) = (b ÷ SinB) = (c ÷ SinC) Sine Rule - Know 2 sides and an angle. You want a missing angle. ANS: (Sin A ÷ a) = (Sin B ÷ b) = (Sin C ÷ c) Midpoint of a...

A-level MATHEMATICS 7357/2 Paper 2 Mark scheme June 2022 Version: 1.0 Final Mark Scheme *226A7357/2/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examination. The...

TSA Written Exam Study Guide Questions and Answers Rated A+ The technique of holding a particular picture on the screen for an extended period of time is known as a/an freeze frame A device that converts electricity into sound is a/an speaker When the length of the side adjacent to an angle is divided by the hypotenuse of a right triangle, the result is the _ of the angle. cosine The number system that uses only 1's and 0's to represent values is binary The part of an internal combination...

Maths edexcel equations exam questions and answers Area of a rectangle - CORRECT ANSWERS Area = Length x Width Area of a parallelogram - CORRECT ANSWERS Area = base x height Area of tringle - CORRECT ANSWERS Area = 1/2 x base x Height Area of a trapezium - CORRECT ANSWERS Area = 1/2(a + b)x height Volume of a cuboid - CORRECT ANSWERS Volume = length x width x height Volume of a prism - CORRECT ANSWERS ...

AQA A-level MATHEMATICS 7357/2 Paper 2 Mark scheme June 2022 Version: 1.0 Final Mark Scheme Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examinatio...

CLEP Precalculus QUESTIONS AND CORRECT PASSED ANSWERS 2023/2024 sin^2(x) + cos^2(x) - correct answer 1 tan^2(x) + 1 - correct answer sec^2(x) 1 + cot^2(x) - correct answer csc^2(x) tan(x) - correct answer sin(x)/cos(x) cos(x)/sin(x) - correct answer cot(x) sec(x) - correct answer 1/cos(x) csc(x) - correct answer 1/sin(x) cot(x) - correct answer 1/tan(x) sin(2x) - correct answer 2sin(x)cos(x) cos(2x) - correct answer cos^2(x)-sin^2(x) 1...

absolute value the distance of a number from zero on a number line acceptance region the values of the observed data that lead to the null hypothesis not being rejected arc the part of the circumference between two points arithmetic sequence/progression a sequence that has a common difference between each term. to get from one term to the next you add the common difference (which could be negative) arithmetic series the sum of the terms of an arithmetic sequence ...