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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 rewr...

The Tempest is technically a traditional comedy with the ending being the unification of Ferdinand and Miranda. From this we must assume that love is a key theme but the narrative arc of Prospero would also ...

I like to address this question by using similar fractions. That is to say x/y=2x/2y X over y is the same as 2x over 2y In this example we are asked what the full price of the dress is, as in what 100% of th...

The use of historiography is likely to be something which is new to A Level Historians. But do not be afraid. Quite simply historiography is the discussion of what historians have said about the events rathe...

It all depends on the infinitive verb ending. For regular verbs; if it ends in -er: 1) Remove the -er from the end of the verb 2) Add the following verb endings, depending on the pronoun, je: -e, tu: -es, il...