Draw the graph of a continuous increasing function in the first
quadrant and horizontal and vertical lines through two points. The
areas in your sketch lead to a useful formula for finding
Generalise this inequality involving integrals.
An inequality involving integrals of squares of functions.
Thank you for your solutions to Daniel and Ben
(no schools given) and to Rajiv from the International School of
Seychelles and Shaun from Nottingham High School.