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This question challenges a students skills with integration and trigonometry a very common question on Core 4 papers that can leave students struggling. First we use our knowledge that cosecy=1/siny and m...

First we need to find the intersection point(s) of L and C so set 6x-x²=16-2x and rearrange to get x²-8x+16=0 so (x-4)²=0.Repeated root so line is tangent to the curve at ...

rewrite the equation in a more helpful way:y=8x² + 2x^-1 differentiate:dy/dx = 16x -2x^-2set equal to 0 and solve for x16x -2x^-2 = 016x -2/ x²=016x= 2/...

The case study of HM, as reported by Milner (1966), can be used to evaluate this model. HM had both of his hippocampi and parts of the temporal lobe removed following a lifetime of epileptic seizures. Fol...

In order to achieve the highest marks possible, it is important to include a wide range of tenses and interesting vocabulary in order to describe where you live. For example: Yo vivo en las afueras de Lon...