# Textbook – Additional Math 360

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## Additional Math – Coordinate Geometry – Circles – Finding the centre and radius by drawing .

Normally we are expected to use formulas and a series of calculations to find the equation of the circle.  However [...]

By |2019-02-02T23:41:30+08:00January 25th, 2019|A-Math - Coordinate Geometry, Textbook - Additional Math 360|

## Additional Math – Quadratic Equations – Find the Equation with roots alpha & 4 alpha

i) Find the Sum and Product of Roots Use the formula:  Sum of roots = $latex \displaystyle -\frac{b}{a}$ and Product [...]

By |2018-01-31T10:53:28+08:00January 31st, 2018|A-Math - Quadratic Eqn, Textbook - Additional Math 360|