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There's no set number of quotations that you need to know for the exam and, when it comes to learning them, less is definitely more. It's more important to have a small collection of quotations that you c...
Price elasticity of demand is defined as the proportional change in demand to a change in price. If the response in demand is more than proportional to the price change, demand is elastic. A less than pro...
Metallic bonding occurs as a result of the electrical attraction forces between the protons in the nuclei of the metal species and the delocalised electrons (which form a sea of electrons surrounding the ...
Factorise denominator using the factor theorem giving - 1/(x+1)(x+2)(x-1) Use partial fractions to turn this into an easier form to integrate giving - 1/3(x+2) + 1/6(x-1) - 1/2(x+...
Firstly notice that the coordinates of the points where the tangent to the curve is parallel to the x-axis are precisely the points where the rate of change of y with respect to x is not changing. That is...
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