- Applets for Additional Mathematics in SingaporeArea under Curve as sum of subdivided rectangles to limitsFirst Derivative of Sine x Demonstrated by Graphical MethodUsing Straight Line Graphs From Data to Determine FunctionsGradient, Average and Instantaneous Rate of ChangeDerivative of a Function, and its Gradient FunctionSelf Review on Evaluation of Definite IntegralsArea Definite Integral & Estimates using Rectangular SlicesTrigonometric Identity ExplorerDisplacement vs Time Graph (Activity 20A)Displacement vs Time Graph for Activity 20BEquivalence in Exponential and Logarithmic FunctionsGraphical Demonstration of the Derivative of Sine xCoordinate Geometry of St Lines Revision PracticeParallel Lines and their GradientsPerpendicular lines and their GradientsRelated Rates: Adjustable Cone with dh/dt ConstantTrig ID Movie (II)Pythagorean Trigonometric Identity (1)Trig ID Movie (III)Oil Pipeline Optimization ProblemSine & Cosine of a Sum: DiscoverySolving Absolute Value Equations (Quiz)Integration Using Partial FractionsIntegral Area from graphTrigonometric Ratios of General Angles (Self Assessment)Problems with graphs of first derivativesGeneral Term of Binomial ExpansionMagic machine for functionQuadratic Formula - Approximate Solutions