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tan(x)/sec²(x) Sec(x) = 1/cos(x), therefore 1/sec(x) = cos(x). also tan(x) = sin(x)/cos(x).using substitution, tan(x)/sec²(x) = (sin(x)/cos(x)) * cos²(x) = sin(x)cos(x). s...

The first ionisation energy of an element is the energy required in order to remove the outermost electron from the element to make it an ion with the charge +1. From magnesium to aluminium the values sho...

The main role of the kidney is to filter the blood, to remove toxins like urea and then via various methods, parts of the kidney are able to reabsorb many of these filtered substances back for example, gl...

Firstly, whilst there are wrong answers to English questions, there is never one single right answer to any English essay. Your job is to argue your point of view to the question asked. If you state your ...

The sonnet is a poetic form first popularised by the Renaissance Italian poet Petrarch. Traditionally in English, sonnets are written in iambic pentameter and have fourteen lines. Traditionally in English...