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The derivative of a function f(x) is a measure of how the function f changes as its variable x changes. You have already met an example of derivatives: the gradient, m,...

Sketching trigonometric graphs is all about working from the graphs you already know and seeing how they behave when added/multiplied/substracted from each other to sketch more complicated functions.

It depends on the situation. If you are talking to your boss, an older person or your teacher, in Italian it is important to remember that you need to use "Lei" to show respect. In older textboo...

Approvo/ disapprovo le unioni civili tra persone omosessuali per i seguenti motivi... (I do/ I don't because...)

The key point to note about breach of duty is that it is assessed objectively - what action or inaction would be expected of 'the reasonable man' in the position of the defendant. Reasonableness is assess...