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When rearranging an equation, the most important thing to remember is that whatever you do to one side of the equation you must do to the other. In order to make y the subject you want to isolate it so t...

This last question on any French GCSE exam is about putting into use all of the tricks you have learnt over the last two years. I recommend looking over the marking scheme before the exam to know exactly ...

We will solve the integral by part. We know the formula for integration by parts: ∫ f(x)'g(x)dx=f(x)g(x)-∫f(x)g(x)'dx (1). We know that: (arcsin (x))'=1/sqrt(1-x^2). So w...

=(x-5)(x+5)

In order to answer, one should consider the benefits of profit maximisation. These may include: satisfying shareholders, using money for savings in order to stay afloat, reinvesting profits into technolog...