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That's right, German has three words for English 'it'! But don't worry, there's a rule which lets you pick the right one! German nouns have grammatical gender and can be masculine (der), feminine (die), o...

Konjunktiv I is used to indicate reported speech (when you are telling someone what somebody else has said).
However, Konjunktiv I is seen as very formal, and so it is rarely used in spoken German. Y...

First, let's assume that sqrt(2) is rational. That is, it can be expressed in the form a/b, where a and b are integers and the fraction is simplified as far as possible.
So we have sqrt(2) ...

Have you ever tried to run the wrong way down an escalator? then you have experienced a dynamic equilibrium.You are moving up, it is moving down and yet, your actual position isn't changing. In a reaction...

A polar coordinate system is just another method to determine a position of a point in space just like the cartesian coordiante system does; which hopefully you are confident with now. At A-level all you ...