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What is the likely effect of Brexit on the UK economy?

Less free trade with EU The European Union is an important source and target for inward investment. Many European companies have invested in the UK and the UK earns revenue from investment in the EU. If the ...
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Answered by Ana W. • Economics tutor
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How do we factorise an expression?

Step 1: Find the highest common factor of the terms in the expression eg. 3x+12 . In this expression 3 is the highest common factor of the terms 3x and 12 Step 2: Write the factor outside the brackets eg. 3x...
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Answered by Maria L. • Maths tutor
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Can you explain the difference between por and para?

Para is usually used to imply a consequence to an action, a destination or recipients of an action. Por on the other hand is used for time duration, and travel means.
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Answered by Martina N. • Spanish tutor
2795 Views

Simplify p^2× p^5

The answer is P^7 because p is the same in both numbers and their powers need to be added up
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Answered by Alberto A. • Maths tutor
6472 Views

Show, using de Moivre's theorem, that sin 5x = 16 sin^(5) x - 20 sin^(3) x + 5 sin x 

Using the question, first use de Moivre's theorem to say (cos x + i sin x)^5 = cos 5x + isin 5x. Now we can use a binomial expansion on the RHS to say cos 5x + isin 5x = cos 5 x + 5i cos 4 x sin x +10i 2 cos...
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