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The imperfetto is a tense used to express the duration of a past action without referring to its beginning, end or purpose. It is often used to describe:

Recurring actions:

Due mesi fa, anda...

Out of all the villains in King Lear, Edmond is by far the most complex. Edmond’s illegitimacy, immediately revealed to the audience when Gloucester states that Edmond “came saucily to this world” denotes...

If you picture an iceberg, the tip is visible above the water, meanwhile the bottom is not visible or easily accessible. The visible top of the iceberg represents the conscious mind, which we can access e...

Cordelia is initially presented as defiant in King Lear. This is evident when Cordelia refuses to flatter Lear when he conducts a love test to determine who receives what part of his kingdom, instead cho...

For the 1st part of the question: use the double angle formula to rewrite cos(2x) = cos^2(x) - sin^2(x). Then use the basic identity to write cos^2(x) = 1-sin^2(x), hence cos(2x) = 1-2sin^2(x). Plug the r...