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The most important thing about essay writing, whether it is for a homework assignment or in the high pressure environment of an exam, is technique. How you make your arguments is just as...

Lets start with what a concentration is. Concentration is the amount of something in a volume. For example, 1 gram of sugar in one litre of water is 1 gram per litre. This can be written as 1g/L (the divi...

Schemas are mental representations of cognitive structures that organise the information stored in our memory. They are knowledge structures that categorise general knowledge about the world.

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To solve this equation for x, we need to get x on its own. To do this, we first need to multiply through by the denominators of the fractions, as none of them contain an x term. Multiplying through by 8 f...

With differentiation and integration, we can take each term separately. In general, to difference a term involving x's with respect to x, you first multiply the power of x by the coefficient of x to find ...