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Improving your foreign language speaking abilities can only come through practicing speaking. While of course listening to the foreign language will help, by giving you an idea of typical sentence constru...
When you solve normal equations like 4x-2=7, there is one equation and one unknown value. This case is no different: in order to solve these equations, you need to create one equation with one unknown. We...
The official answer for this question is that you have to learn the gender of each new noun individually. However, quite often it is possible to guess the gender of nouns from their endings. For example, ...
Marginal revenue is the revenue generated by selling the last unit of output. Marginal cost is the cost of producing the last unit of output. Profit is maximised at the output where MC=MR because if less ...
The product rule is used to differentiate a function when it is in the form y= u(x)v(x). To use the rule you differentiate u(x) and multiply that by v(x), and then add that to the differential of v(x)...
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