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Pythagoras' theorem is used to calculate the lengths of the sides of a right angled triangle. 

The theorem is as follows : a² = b² + c², where a is the len...

Let's say that we have two events and we'll call them event A and event B. If these events were mutually exclusive then these events would not be able to occur at the same time. For example, if Real Madri...

David Hume, an empiricist, separated knowledge into categories - "matters of fact" and "relations of ideas".

Hume argues that every affirmation which is certain, such as geometr...

In Freiburg, sustainable and efficient transport has been developepd with the introuction of 500km of cycle lanes. The significantly reduces CO₂ emissions in the city and encourages a sustainab...

the basic idea is to get everything with the unknown (let's assume this is x) on one side of the equals and everything else on the other side. To do this we use the 'inverse idea' to move our items onto d...