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You can find the stationary points by differentiating the equation and then solving it for zero. What this means, is that you can take the power of the Xs in the equation, and differentiate by bringing th...

First of all this is something that people very frequently struggle with and it can be difficult to get your head around at first. But if we were to look at the demand curve it is easier to visualise the ...

Prophase: The chromosomes condense and the nuclear envelope breaks down. Centrioles move to opposites ends of the cell, forming the mitotic spindle. Metaphase: Chromosomes line up at the equator of the ce...

To solve these equations, we have to rearrange the second equation to make x ‘the subject’ and then we can substitute it into the first one. First, subtract 2y from both sides so x=1-2yNext substitute thi...

The first thing to do once you've finished reading a poem, before you even begin to analyse in-depth, is to think about how the writer is trying to make you (the reader) feel and make a note of any themes...