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What is the difference between a primary and a secondary effect of a natural disaster?

In the case of a natural disaster, there will be a whole range of effects. The simplest way to distinguish between these effects is to categorise them as primary or secondary. A primary effect is one that is...
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Answered by Annie G. • History tutor
89477 Views

differentiate x^3(1+x)^5 with respect for x

First we have to use the product rule, remember that if we have h(x)=f(x)g(x) then h'(x)=f'(x)g(x)+f(x)g'(x).So h'(x) = x^3D[(x+1)^5]+(x+1)^5D[x^3]Completing the unfinished derivatives,h'(x) = x^3[5(x+1)^4]+...
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Answered by Robert L. • Maths tutor
4992 Views

solve z^4=2(1+isqrt(3)) giving roots in form r(cos(theta)+isin(theta))

Sorry but it's a little hard to write the question out! I have the working on paper but I can't upload it. Ok so first you need to multiply out the brackets to make it a little easeier to look at and obtain ...
RL
Answered by Robert L. • Maths tutor
6968 Views

¿Cuándo se utiliza el pretérito perfecto, el imperfecto y el pretérito? = When do you use the perfect, the imperfect and the indicative past?

Firstly, let's start with the 'imperfecto' tense as it's the easiest to differentiate. The endings for this tense are as follows: For regular verbs ending -AR in the infinitive (that is the 'to ...', e.g. to...
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Answered by Alya M. • Spanish tutor
6191 Views

How can I improve my German vocabulary?

First of all, don't worry if you're feeling overwhelmed by the amount of German vocabulary you need to know – sometimes it can feel like quite a lot, especially if you haven't been learning the language all ...
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Answered by James M. • German tutor
3661 Views