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The first step in solving the equation is to find the stationary points of the function, these are the points where the gradient is equal to zero. In order to find these points, first differentiate using ...

It's easier if we first visualise the function on a graph, then we can see in which regions it is negative. From there we can see which integer values lie in this region. A positive quadratic function has...

Good question. This can be confusing because we don't always have the same markers for these two tenses in English. Try to remember the preteriteas one single action or time period, and t...

Firstly, expanding your vocabulary will allow you to be more flexible when writing, however you need to go about learning the vocabulary in an applied way. Make sure you are able to use it in context (thi...

If working on a question like this I would encourage and push a student in a number of specific directions. What the question wants is a detailed, engaging description of a particular place, with a person...