Quadratics – Circles
Equation of a circle with given centre, passing through a point
Quadratics – Completing the Square
Completing the square (simple examples)
Circle in standard form by completing the square
Quadratics – Disguised Quadratics
sin and cos in a disguised quadratic
Quadratic equation disguised as an exponential function
Advanced trig: R-form with subsequent solution involving disguised quadratic
Quadratic equation disguised using trig functions sin and cos
Solving exponential equation as disguised quadratic
Quadratics – Integration Related
Integration with irreducible quadratic in denominator using trig substitution
Quadratics – Sketching
Sketching graph of y=-3-x^2 (quadratic / parabola)