Search over 10,000 free study notes

So, the first thing to look at in long answer questions is the number of marks they're awarding. The next is to read the question a few times over and make sure you really understand what they're asking f...

We have two reliable methods of solving this simultaneous equation. We can either eliminate the variables (x or y) directly, or make one of the variables the subject of the equation. I will show you how t...

Konjunktiv II (also known as the subjunctive II) is a verb form which can be used for conditional statements, to express uncertainty, contrary-to-fact statements and polite requests.
To use Konjunkt...

This question is concerned with balancing forces. First, we must consider what forces are acting on the satellites. What is stopping the satellite from shooting off into space and what is preventing it fr...

The exponential function is defined as a power series, which we may (for reasons that are beyond the scope of A-level) differentiate term by term to get another power series. The general term of the serie...