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Whenever you have a define by exponentials question start with:

sinh(t)=0.5(e^t-e^-t)      and    cosh(t)=0.5(e^t+e^-t)

We know tanh(...

Differently from English, Italian has a specific form to use when addressing people in a formal way. Generally speaking you have to use the third singular person of a verb (Egli-Ella-Lui-Lei) instead o...

The easiest way to explain it is that it is the 'adverbial' case. This means that it will always tell us something more about how an action (described by the verb) took place.

One of the ...

A negative transfer is a process that happens during second language acquisition, where a learner of a foreign language applies rules that do not belong to the language he is speaking or writing. An ex...