Save guides, add subjects and pick up where you left off with your BBC account. Find the equation of a circle with radius 3 units and centre (0, 0). The radius, \(r = 3\) and \(r^2 = 9\), so the ...

One method of obtaining this equation is to integrate dxdy over the area of a circle. Well ... in the past to find the area under a curve on a graph (before technology gave us better methods).

Jean Kelly from Dublin's Institute of Education is here with six videos full of great advice and tips for the exam.

Later this year, Circle to Search will also gain the ability to solve complex math equations that involve formulas, diagrams, graphs, and more. Google is using LearnLM, its new AI model that’s ...

Find the equation of the tangent to the circle \(x^2 + y^2 = 25 \) at the point (3, -4). The tangent will have an equation in the form \(y = mx + c\) so to find the equation you need to find the ...