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You have six cases in Russian: the nominative, accusative, genitive, instrumental, dative and prepositional. Remember they are all used at varying popularities, so the dative case is not nearly going t...

The subjunctive is a tricky part of the french language, one that often confuses students.

There are several cases in which it is used:

- when you express a desire, a will, ...

If a set of equations has more unknowns than equations, you cannot get a value for each unknown. However, you can find the relationships between the variables.Start by rearranging one variable in terms of...

To simplify a surd, remember thatsqrt(a*b) = sqrt(a)sqrt(b)If either a or b are square numbers, you can simply write its square root. Hence, to simplify a surd, you must look for any ...