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Make use of identity sech^2(x) = tan^2(x) + 1

=> 2{tan^2(x) + 1} = 3 + tan(x)

Multiply out brackets and rearrange

=> 2tan^2(x) - tan(x) - 1 = 0

Use quadratic formula w...

As this question is worth 6 marks, 6 different points need to be made to get all the marks. These could be two from each structure that is given. The teeth in the mouth break down food into smaller pieces...

The Byronic hero is an idealised but flawed character exemplified in the life and writings of Lord Byron, characterised by his ex-lover Lady Caroline Lamb as being "mad, bad, and dangerous to know&qu...

The reliability of a research method refers to the consistency of a measure being used, and the ability to replicate that method e.g. someone who weighed them self throughout the day, would expect to see ...

The unseen commentary can be very daunting - some students think you can't revise for it (because it's unseen, right?), but I think you can, and the key to doing well is: (1) to consider the key elements ...