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Say arctan of x is equal to a value y. Now take the tangent of both sides; x now equals tan of y! Easy from here, differentiate both sides wrt x. Now 1 equals sec^2y dy/dx, and you can rearrange to find d...

Mitochondria are advantageous as they allow the cell to respire aerobically, without them they can only respire anaerobically. As a result of this aerobic respiration due to the mitochondria's presence th...

The first thing to consider is the properties of sulfur dioxide. Sulfur dioxide is a simple molecule. It contains only three atoms which means it is small, and very strong covalent bonds connect these. Re...

1. Blood enters via right atrium 2. Blood passes through the tricuspid valve to enter the right ventricle 3. This blood is then pumped from the right ventricle to the Lungs where it is oxygenated 4. Ox...

This is a typical Core 2 maths AS question.

I would start by explaining how a formula can be used to expand this expression and similar ones. I would then explain how to create pascal's triangle an...