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de Moivre worked out a brilliant and beautiful way to solve complex equations.
If you for example have z3= 1 and you want to find all real and complex z that satisfy thi...
The subjunctive mood is used in French to express several different things, such as uncertainty, hope or fear. Firstly we will look at how it is constructed: For regular verbs, we take the third person pl...
expand the brackets to get x2-2x+3x-6=4x+22 bring all the terms to one side x2-2x+3x-6-4x-22=0 (remember:if you do something to one side, do the same thing to the other! e.g. -4x on ...
The most common explanation of the idea of sovereignty comes from Dicey, who saw sovereignty as the idea that Parliament can make or unmake any law it chooses, with unlimited discretion. This means that f...
To find the gradient of the curve at t=2 we need to find an expression for dy/dx and then substitute in for t=2. We can make use of the chain rule to find this expression because dy/dx = (dy/dt)/(dx/dt) a...
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