9709/32 · Oct/Nov 2023

Sketch a modulus graph and solve an inequality.

Gradient of a parametric curve at a point.

Find two coefficients of a cubic from the factor and remainder theorems.

Shade a region on an Argand diagram and find the greatest argument.

Evaluate an exact definite integral.

Locate a root by sketch and sign change, then iterate.

Prove a triple-angle identity and use it to solve an equation.

Equate real and imaginary parts to form and solve an equation.

Maximum point of a trigonometric curve and the exact area under it.

Angle between two lines, then a perpendicular distance from a point to a line.

Solve a separable differential equation with a condition and find a limit.