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So lets have a quick recap of differenciation to start off. In informal terms, differenciation is carried out by dropping the power to be in front of the term we are differenciating to as well as decremen...

Stationary waves are waves that do not transfer energy. These occur where both ends of the wave are in fixed positions. An example of this would be a string on a violin. As the wave reachs the end of t...

The general formula for a volume of rotation is pi times the integral of y^2. The first step is to square y. this can be done by squaring the first term, squaring the last term and finding twice the pr...

Source questions can be scary, particularly as the short time limit makes you feel that every word has to count. To feel more comfortable when analysing a source, the most important thing to keep in mi...

The rate at which the area is increasing, dA/dt, can be written with terms we know or can find out easily: dA/dt=dA/dr x dr/dt.Area of a disc, A = (pi)r^2dA/dr=2(pi)rRate of change of radius, dr/d...