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The technique we need to use to solve this integral is called integration by parts. The parts formula is: the integral of (uv' dx) = uv - the integral of (u'v dx) (where u and v are functions of x). We ne...
The first piece of understanding needed to answer this question is that integration can be used to find the area under a graph between two points. However, before we can integrate we must find the bounds ...
Economic measures, especially simplistic measures such as GNI, can be misleading. Firstly, economic measures do not take any account of people’s quality of life which is important in social terms. Secondl...
Let x be a number so that the sides of the triangle are 3x, 4x and 5x, because the ratio is 3 : 4 : 5. The perimeter is 3x+4x+5x=12x=72, meaning that x = 72/12 = 6. The sides of the triangle are 36=18...
Elasticity of demand is the percentage change in demand quantity divided by the percentage change in price. If demand is very elastic it means that it is very sensitive to changes in price. A price change...
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