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High level languages may seem easier to use when you start programming but they do not offer the same degree of flexibility and efficiency which can be provided by using assembly or machine code. using th...

It is not just trial and error, as this will eat away time in the exam. if you can't see it straight away then you need to consider some things. for example a common question might be find the integral of...

The first equation can be multiplied by 3 to give 3x + 3y = 9. Then these two equations can be added by summing both left hand sides and both right hand sides to obtain the new equation 3x + 3y - 3x + 5y ...

1. Begin with either a pronoun (Ich, Du, Er etc) or a noun (Der Hund) 

2. Use the relevant conjugation of 'werden'

3. <...

Crude oil has lots of molecules with different numbers of carbon atoms in them. A fractional distillation column is used to separate the molecules. It is hottest at the bottom and coolest at the top. Bitu...