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Differentiation is a mathematical operation which we can use to study how one quantity, such as the distance travelled by a train, is affected by another quantity, such as time. For example, if the train ...

Factorising basically means put whatever equation you are given into brackets. So, E.g. x² + xFirst you want to look for a common factor which here is X. Therefore, the answer would be x(x+1).T...

Current is a measure of the rate of change of charged electrons going through the wire. Therefore, when the current increases more electrons are passing through the wire in a unit time. Thus, their averag...