Given any three non intersecting circles in the plane find another circle or straight line which cuts all three circles orthogonally.
Stick some cubes together to make a cuboid. Find two of the angles by as many different methods as you can devise.
Draw graphs of the sine and modulus functions and explain the humps.
Match the descriptions of physical processes to these differential equations.
Explore the hyperbolic functions sinh and cosh using what you know about the exponential function.
This problem asks you to use your curve sketching knowledge to find all the solutions to an equation.
The famous film star Birkhoff Maclane wants to reach her refreshing drink. Should she run around the pool or swim across?
