Search over 10,000 free study notes

To rationalise a fraction we have to eliminate the surds in the denominator. We know we can multiply the top and the bottom of a fraction by the same thing, as this is equivalent to multiplying by 1. Noti...

In Russian, regular verbs are formed by using the STEM of the infinitive and a SUFFIX, which agrees in both GENDER and NUMBER: Masc: -л / ...

The 'future in the past' is a grammatical concept in Italian that doesn't exist in English. We use it to talk about things that, in the past, we thought might happen in the future. Sounds confusing? An ex...

A metaphor is a figurative language technique which describes an object, action or person by directly comparing it it to something else. Often the comparison creates a mood within the text that reflects ...

First of all you calculate dy/dx. To do this you look at each x individually. For the first x you multiply it by it's power and then minus 1 from the power to get 3x^2. Then multiply the next x by the pow...