I just bought this guy's Chemistry notes, and they are AMAZING! A comprehensive, well-structured set of notes at a very reasonable price.
Kamal himself was also very friendly and forthcoming, and made the whole process quick and easy.
Best set of notes I have seen HANDS DOWN - would definitely...
Hi Guys,
Can someone please help me with this max/min problem?
A square of side 2x and a circle of variable radius r, where r < x, have a common centre. In each corner of the square, a circle is constructed so that it touches two sides of the square and the centre circle. Find the value...