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This type of short writing question is present in all Spanish AS and A-level papers and the ideal answer for such a question is typically 2-3 sides long. The main goal is to creatively try and show as man...

An increase in the ROI(rate of interest) would increase the reward for saving money and hence increase consumers' incentives to save. This would reduce the levels of consumption in the economy and hence r...

Find the derivative of f(x)=x³ sin(x).

To do this calculation we need to use the product rule of differentiation: if f(x)=u(x)v(x), then the derivative is f'(x)=u'(x)v(x)+u(x)v'(x). In o...

The smaller ion of the two would be Mg²⁺. Both ions have the same electronic arrangement so the amount of shielding occuring for both ions is the same. The key difference between the ions that ...

First of all we are asked to differentiate the function. This can be easily done by multiplying the coefficient of x by its exponent, and then decreasing the exponent by one. Therefore, dy/dx=3x^2+4x We a...