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This is a basic example of a very important result: the chain rule. The difficulty of this sort of example is that we have a "function of a function". That is, we have the function '4-x' and then w...

For this question the chain rule should be used, the chain rule is that dy/du*du/dx=dy/dx. If we say u=(x 2 +2x) and therefore y=e u Then du/dx=2x+2 and dy/du=e u. Then dy/du*du/dx= (2x+2)e u , then we can s...

To solve the the problem we need to recognize what type of differentiation technique we shall be employing y = (e x ) 7 the x unction which we are diferentiating is a power of an exponential function therefo...

In 5 mark questions, you only need to make 3 points. However, below are all the points that you could make, some with examples. Elections are held at specific intervals. In the UK this is every 5 years. Refe...

Introduction Start simple, with a sentance stating which way you will be arguing, and a second sentance summarising your argument. For example, "I will be arguing that..." Body You only have around...