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Ok so for this question we'll use this example: y = (e^{-2x^2} + 2)^1/5
We start off by making the expression inside the brackets equal to u. In other words u = e^{-2x^2} + ...

Graphically, the solution of a pair of simultaneous equations is the point of intersection between both curves. If we want only one solution to the system of equations, then there should only be one point...

Find two values that multiply together to make 24, and add together to make 11
List the factors of 24:24,112,26,48,3
Here we can see the only numbers that add together to make 11 are 8 and 3, s...

First we must ensure the equation is in a form that is easy for us to plot!This means we equate the quadratic to 0 by shifting the -2 to the other side. We do this by adding +2 to both sides.Now, we draw ...

Use cosine rule to find the length of BD then use this with the sine rule to find length AD, will be more obvious with the diagram on the whiteboard.