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Price Elasticity of Demand (PED) is the responsiveness of demand to a change in a product's price. PED may be calculated using the formula (% Change in quantity demanded / % Change in price). PED differs ...

You use the sine rule (a/sina=b/sinb) when you know 2 angles and one side amd you want to find out what the length of the side opposite one of the angles is. 

"Stereo-" refers to 3D space, like with stereo sound involving sound from all directions.  The C=C double bond has no free rotation, as this would require breaking the pi bond, which is energeti...

The body is able to utilise a number of measures in order to maintain an optimum body temperature of around 37 degrees celsius. Firstly, capillaries close to the skin surface are able to vasodilate (expan...

To solve this question we use the product rule, where we differentiate one variable whilst keeping the other constant, and vice versa, adding the two results together to get our answer. A helpful formula ...