Search over 10,000 free study notes

Using the knowledge of a 2 = b 2 + c 2 - 2bcCos(A) Rearrange to aquire Cos(A) = (b 2 + c 2 - a 2 )/2bc Then input the values to obtain the angles of 42, 69, 69.

d/dx(4x 3 + 2x) = d/dx (4x 3 ) + d/dx(2x) = 4(3x 2 ) + x = 12x 2 + x

Any chemical that dissociates to give an H + ion is classified as an acid. There are stong and weak acids but at GCSE you only need to know some key reactions which apply to both weak and strong acids. acid ...

All three are types of aural imagery which is probably the most prominent type of imagery as it is easily identified by reading out the text. It is spread into many sections. 1) Alliteration: the repetition ...

The key to a good essay is planning ahead. Firstly look at the question and form the answer by putting down the main points, which will then become your paragraphs. Never put down more than 4 main points bec...