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The terror enforced in 1793 was designed to stabilise the French government by removing counter-revolutionary threats. This was partly successful, with the crushing of the risings in the Vendeé and Rouens...

Availability of water; appropriate temperature range; suitable ambient gases; sunlight

Start with the LHS:

(cos^4x - sin^4x) / cos^2x 

Recognise the difference of two squares on the top line, which simplifies to (cos^2x - sin^2x)(cos^2x + sin^2x):

(cos^2x - sin^2x)(cos^...

Parameters are variables sent to procedures so that the procedures are able to use them. There are two main ways of passing parameters, one of which is by value: Passing a parameter by value is where a co...

The subjunctive is used to express wishes, probabilities, or conditions which are contrary to fact. It is called Konjunktiv 2 in German.

It would be like the "would do" function in Englis...