A absolute value amplitude arccos arcsin arctan arithmetic mean arithmetic progression asymptote axis axes C calculus Cartesian coordinates chord circular measure coefficient constant collinear commutative completing the square coordinate cosine rule counter example cubic D definite integral derivative differentiation discontinuity discriminant E equation even function F factorisation factor theorem fraction function G geometric progression gradient graph I integer integration intercept intersection L linear local maximum local minimum locus N natural numbers normal O odd function origin P parallel periodic perpendicular plot point of inflexion polynomial Q quadrant quadratic R radian rationalise reciprocal S sine rule slope solution solve straight surd T tangent transformation translation trigonometry turning point V variable