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A conclusion is a summary of the key arguments that have been presented throughout the essay. It is the last part of your essay that an examiner will read and so it's vital to conlude and answer the quest...

We start by expanding out the double trigonometric terms (sin(2a)) using the double angle formula, giving us: [2sin(a)cos(a)] / [1+cos^2(a) - sin^2(a)]. Next we spot that on the denominator (bottom half o...

Chlorine has a higher electronegativity, but as it has a large atomic radius the electron density is spread out over a large area. This means that the electron density is too low to form proper hydrogen b...

The definite integral gives the value of the area bounded between the curve at the given limits, and the x-axis (if we are integrating with respect to x!) If this value is negative, it means that the area...

Structure says a lot about the poets intentions of the poem, and how they wished the poem to be read. 

Short, sharp lines, with long continuous stanzas suggest a pace to the poem. Whereas longer li...